Carbon Resources Conversion最新文献_第3页

Low-cost biomass ash-based adsorbent for removal of hydrogen sulfide gas 用于去除硫化氢气体的低成本生物质灰基吸附剂

IF 7.5 3区环境科学与生态学 Q2 ENERGY & FUELS

Carbon Resources Conversion

Pub Date : 2025-12-01 Epub Date: 2025-03-31 DOI: 10.1016/j.crcon.2025.100327

Kanathip Promnuan , Rusmanee Ma , Marisa Raketh , Prawit Kongjan , Saowapa Chotisuwan , Rattana Jariyaboon

This research aims to use boiler-biomass ash to produce low-cost and efficient adsorbent for removing hydrogen sulfide (H₂S) in biogas from small scale biogas plant. To reduce pressure drop across adsorbent bed during the practical adsorption, clay was selected as a binder to perform the extruded adsorbent. 15 different adsorbents using different proportion of ash to clay (70–90 %) together with the an amount of NH₄HCO₃ as pore-forming reagent (0–6 %), and baking temperature (100–500 °C) were prepared. From the breakthrough cure studies using fixed-bed column fed by 0.1 L/min synthetic H₂S containing gas, it was found that quadratic equation with R² 0.75 can be used to optimize adsorption preparation and predict H₂S adsorption capacity. The optimized adsorbent prepared using 79 % ash, and 2.5 % NH₄HCO₃ at 293 °C was validated and had achieved H₂S adsorption capacity of 3.67–3.88 mg/g. The characterization results, including BET surface area analysis and SEM imaging, show significant pore formation due to the presence of NH₄HCO₃. CHNS/O SEM-EDX, and XRF analyses confirmed that there wasan increase in sulfur content of the post-adsorbent. The decrease in surface area and change of functional groups in FTIR spectrum of the spent adsorbent, and presence of metal elements supporting the chemisorption mechanism were also discovered. The best fitted breakthrough curve operated at 200–10,000 ppm H₂S containing gas to Thomas model which could be implemented for further scaling up are also proposed. This is a successful attempt to use an abundance industrial waste, eco-friendly local material and novel pore forming agent in order to create an eco-efficient adsorbent for H₂S removal.

本研究旨在利用锅炉-生物质灰制备低成本高效的吸附剂，用于去除小型沼气厂沼气中的硫化氢。为了减少实际吸附过程中吸附床间的压降，选择粘土作为粘结剂进行挤压吸附剂。以不同灰土比（70 ~ 90%）和NH4HCO3（0 ~ 6%）为成孔剂，焙烧温度（100 ~ 500℃）为条件，制备了15种不同的吸附剂。通过0.1 L/min含合成H2S气体进料固定床柱的突破性固化研究，发现R2为0.75的二次方程可用于优化吸附制备和预测H2S吸附量。以79%灰分、2.5% NH4HCO3为吸附剂，在293℃条件下制备的最佳吸附剂吸附H2S的容量为3.67 ~ 3.88 mg/g。表征结果，包括BET表面积分析和SEM成像，表明NH4HCO3的存在导致了明显的孔隙形成。CHNS/O SEM-EDX和XRF分析证实，后吸附剂的硫含量有所增加。废吸附剂的表面积减小，FTIR光谱中官能团的变化，以及支持化学吸附机理的金属元素的存在。对Thomas模型来说，在200-10,000 ppm含H2S气体条件下的最佳拟合突破曲线可以进一步扩大规模。这是一次成功的尝试，利用丰富的工业废物、环保的当地材料和新型的成孔剂，来创造一种生态高效的H2S去除吸附剂。

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引用次数: 0

Progressive adaptation of microalgae consortium to elevated carbon dioxide coupled with enhanced production of essential fatty acids 微藻联合体对高浓度二氧化碳的逐步适应以及必需脂肪酸的增强生产

IF 7.5 3区环境科学与生态学 Q2 ENERGY & FUELS

Carbon Resources Conversion

Pub Date : 2025-12-01 Epub Date: 2025-04-02 DOI: 10.1016/j.crcon.2025.100330

Alston Bernard D’Souza , Atiqur Rahaman , Khandaker Asif Ahmed , Elena Adaschewski , Dieter Hanelt , Abdelfatah Abomohra

This study investigated the possible adaptation of a microalgae consortium to elevated carbon dioxide (CO₂) concentrations reaching up to 50 % v/v in a lab-scale photobioreactor (PBR). Results showed a significant reduction in the growth rate of the consortium with increasing CO₂ supplementation, from 1.327 d^-1 in the initial culture without CO₂ supplementation to 0.369 d^-1 at 50 % CO₂. At the lowest applied CO₂ supplementation of 10%, the growth rate was 0.735 d^-1. Interestingly, supplementation of 40% CO₂ in the final run showed insignificant difference in the growth rate of the consortium compared to that at 10% CO₂. Microbial community analysis revealed a shift towards bacterial genera that enhance the microalgal growth, while some algal genera (mainly Tetradesmus and Chlorella) became more dominant under CO₂ enrichment. Compared to the initial consortium, the proportion of polyunsaturated fatty acids (PUFAs) increased from 36.2% to 58.1% under 40% CO₂, mainly due to the increase in the proportion of essential fatty acids (EFAs) such as alpha-linolenic acid (ALA) and linoleic acid (LA). Under 40% CO₂ supplementation, an increase in cell size was observed, despite a reduction in cell number. This study highlights the potential of microalgae consortia to adapt to high CO₂ levels, leading to a dominance of certain algal genera. This adaptation improves the production of EFAs, thereby contributing to both environmental sustainability and industrial applications.

本研究探讨了微藻联合体在实验室规模光生物反应器（PBR）中对二氧化碳（CO2）浓度升高达到50% v/v的可能适应性。结果表明，随着CO2添加量的增加，该联合体的生长速率显著降低，从初始培养时不添加CO2的1.327 d-1降至50% CO2时的0.369 d-1。最低CO2添加量为10%时，生长速率为0.735 d-1。有趣的是，在最后一次运行中补充40%的二氧化碳与10%的二氧化碳相比，联合体的生长速度没有显著差异。微生物群落分析显示，在CO2富集条件下，微藻的生长向有利于微藻生长的细菌属转移，而一些藻类属（主要是四角藻和小球藻）则变得更占优势。与初始财团相比，在40% CO2下，多不饱和脂肪酸（PUFAs）的比例从36.2%增加到58.1%，主要是由于必需脂肪酸（EFAs）如α -亚麻酸（ALA）和亚油酸（LA）的比例增加。在补充40%二氧化碳的情况下，观察到细胞大小增加，尽管细胞数量减少。这项研究强调了微藻联合体适应高二氧化碳水平的潜力，导致某些藻类属的优势。这种适应改进了EFAs的生产，从而促进了环境可持续性和工业应用。

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引用次数: 0

3D-porous activated carbon morphological modification of Manihot esculenta tuber and Bambusa blumeana stem for high-power density supercapacitor: Biomass waste to sustainable energy 用于高功率密度超级电容器的马尼洪块茎和青竹茎的3d多孔活性炭形态改性：生物质废弃物到可持续能源

IF 7.5 3区环境科学与生态学 Q2 ENERGY & FUELS

Carbon Resources Conversion

Pub Date : 2025-12-01 Epub Date: 2025-03-10 DOI: 10.1016/j.crcon.2025.100313

Markus Diantoro , Nuviya Illa Muthi Aturroifah , Ishmah Luthfiyah , Joko Utomo , Ida Hamidah , Brian Yuliarto , Andrivo Rusydi , Santi Maensiri , Worawat Meevasana

Activated carbon derived from biomass is an environmentally friendly and low-cost supercapacitor electrode material. The diverse morphology and pore shape of activated carbon have a significant impact on enhancing the storage capacity of supercapacitors. However, the disparate distribution of pore sizes in activated carbon has a negative effect on energy density. In the present study, the synthesis and modification of the carbon pore structure of Manihot esculenta tuber and Bambusa blumeana stem was carried out using a sonochemical-assisted hydrothermal method with various chemicals (0.06 M KOH, 0.06 M PVP, 0.06 M ZnCl₂). The 3D pore structure of the sample modified with 0.06 M ZnCl₂ exhibited a well-defined microporous architecture and a substantial specific surface area of 516.29 m²g⁻¹, leading to excellent electrochemical performance in coin cell supercapacitors. A high power density of 1086.12 Wkg⁻¹ at a voltage window of 2 V has been attained, with a corresponding current density of 0.3 Ag⁻¹. Remarkably, after 5000 charge and discharge cycles, the capacitance retention was maintained at 90.8 %. The high power density produced from biomass activated carbon based on Manihot esculenta tuber and Bambusa blumeana stem modified using 0.06 M ZnCl₂ provides a practical approach for environmentally friendly electrical energy storage devices and realizes rapid mass transportation.

生物质活性炭是一种环保、低成本的超级电容器电极材料。活性炭的不同形态和孔隙形状对提高超级电容器的存储容量有显著影响。然而，活性炭中不同孔径的分布对能量密度有负面影响。本研究采用声化学辅助水热法，以0.06 M KOH, 0.06 M PVP， 0.06 M ZnCl2为原料，合成并改性了马尼洪和青竹茎的碳孔结构。0.06 M ZnCl2修饰后的样品三维孔结构具有良好的微孔结构，比表面积达到516.29 m2−1，具有优异的纽扣电池超级电容器电化学性能。在2v的电压窗下，获得了1086.12 Wkg−1的高功率密度，对应的电流密度为0.3 Ag−1。值得注意的是，经过5000次充放电循环后，电容保持率保持在90.8%。以0.06 M ZnCl2改性的马尼特块茎和竹茎为原料制备高功率密度生物质活性炭，为环保储能装置和实现快速大规模运输提供了切实可行的途径。

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引用次数: 0

Optimizing hydraulic retention time for methane production from the hydrogenic effluent left over from the co-digestion of vinasse and spent brewer's yeast cell 优化酒糟与废啤酒酵母细胞共消化产氢废水产甲烷的水力停留时间

IF 7.5 3区环境科学与生态学 Q2 ENERGY & FUELS

Carbon Resources Conversion

Pub Date : 2025-12-01 Epub Date: 2025-04-01 DOI: 10.1016/j.crcon.2025.100328

Chatchawin Nualsri , Chakkrit Sreela-or , Punnada Tharangsri , Worapong Wongarmat , Alissara Reungsang , Sureewan Sittijunda

This study aims to optimize the hydraulic retention time (HRT) for the methane production from hydrogenic effluent derived from the co-digestion of vinasse and spent brewer's yeast cells. The experiments were conducted in a continuous stirred tank reactor (CSTR) at various HRTs ranging from 60 to 5 days. The results showed that optimal performance was achieved at HRT 10 days. Under this HRT, yielding a maximum methane production rate of 853.6 mL/L·d and a methane yield of 304.9 mL/g-VS, with a COD removal efficiency of 53.86 %. The microbial community analysis revealed distinct patterns across different HRTs, with shorter HRTs (5–15 days) dominated by Bathyarchaeia-related taxa and Thermoplasmatota, while longer HRTs (30–60 days) showed the predominance of traditional methanogenic archaea within the Euryarchaeota phylum. The methane production process involved both acetoclastic and hydrogenotrophic pathways, with enhanced efficiency observed under shorter HRTs where both pathways coexisted. The greenhouse gas reduction potential analysis revealed that implementing this process could potentially reduce emissions by 1,026,206 tCO₂eq/year through the substitution of fossil fuel-based electricity with methane-derived power.

本研究旨在优化酒糟与啤酒酵母细胞共消化产氢废水产甲烷的水力停留时间（HRT）。实验在连续搅拌槽式反应器（CSTR）中进行，hrt从60天到5天不等。结果表明，HRT第10天达到最佳性能。在此HRT下，产甲烷量最大为853.6 mL/L·d，产甲烷量为304.9 mL/g-VS， COD去除率为53.86%。微生物群落分析显示不同hrt间存在明显差异，hrt较短（5 ~ 15 d）以深海古菌相关类群和热原菌为主，hrt较长（30 ~ 60 d）以Euryarchaeota门的传统产甲烷古菌为主。甲烷生产过程包括丙酮裂解和氢营养两种途径，当两种途径共存时，较短的hrt可以提高效率。温室气体减排潜力分析显示，实施这一过程可以通过用甲烷发电替代化石燃料发电，每年减少1,026,206吨二氧化碳当量。

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引用次数: 0

Self-pillared hierarchical Silicalite-1 zeolites for enhanced Suzuki-Miyaura coupling reactions 增强Suzuki-Miyaura偶联反应的自柱状分层硅石-1沸石

IF 7.5 3区环境科学与生态学 Q2 ENERGY & FUELS

Carbon Resources Conversion

Pub Date : 2025-12-01 Epub Date: 2025-04-15 DOI: 10.1016/j.crcon.2025.100331

Xicheng Jia , Jianxin Liu , Yuming Zhang , Dahong Jiang

The Suzuki coupling reaction is a widely employed technique for the synthesis of biaryl compounds in various disciplines. This study introduces the development of a highly efficient and recyclable palladium-doped Silicalite-1 (S-1) catalyst featuring a hierarchical structure, which enhances the efficacy of Suzuki coupling reactions. By utilizing tetra-n-butylphosphonium hydroxide as a structure-directing agent and adjusting the molar ratios of ethanol and water in the synthetic precursor, we successfully produced a range of porous S-1 catalysts. These catalysts displayed a unique architecture characterized by interconnected thin pillars or lamellae. The catalyst’s remarkable specific activity facilitated rapid Suzuki coupling reactions, completing within just three hours under environmentally benign conditions. The Suzuki reaction mechanism was discussed, which involves an oxidative addition of bromobenzene to heterogeneous Pd, followed by metal exchange with phenyl boronic acid and completed by a reductive elimination. Comprehensive substrate screening, selectivity assessments, and recycling studies were also undertaken.

铃木偶联反应是合成联芳基化合物的一种广泛应用的技术。本研究介绍了一种高效、可回收的掺杂钯硅-1 （S-1）催化剂的开发，该催化剂具有层次化结构，提高了铃木偶联反应的效率。利用四正丁基氢氧化磷作为结构导向剂，调节前驱体中乙醇和水的摩尔比，成功制备了一系列多孔S-1催化剂。这些催化剂表现出独特的结构特征，即相互连接的薄柱或薄片。催化剂显著的比活性促进了快速的铃木偶联反应，在无害环境的条件下，仅需3小时即可完成。讨论了溴苯氧化加成非均相钯，与苯硼酸进行金属交换，并通过还原消除完成的铃木反应机理。还进行了全面的底物筛选、选择性评估和回收研究。

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引用次数: 0

Outside Back Cover 外封底

IF 7.5 3区环境科学与生态学 Q2 ENERGY & FUELS

Carbon Resources Conversion

Pub Date : 2025-12-01 Epub Date: 2025-10-29 DOI: 10.1016/S2588-9133(25)00085-7

引用次数: 0

Regulating metal–acid active sites in hierarchical porous Ni/Y for selective hydrocracking of naphthalene 调控分层多孔Ni/Y中金属酸活性位点对萘选择性加氢裂化的影响

IF 7.5 3区环境科学与生态学 Q2 ENERGY & FUELS

Carbon Resources Conversion

Pub Date : 2025-12-01 Epub Date: 2025-03-19 DOI: 10.1016/j.crcon.2025.100326

Xiaoyang Kong , Jinlin Mei , Zhentao Liu , Yutong Zou , Enhua Wang , Wei Wang , Chunya Wang , Chunming Xu , Xilong Wang

The preparation of high efficiency hydrocracking (HCK) catalyst is the key to the production of BTX (benzene, toluene and xylene) from polycyclic aromatic hydrocarbons (PAHs). In this work, the recrystallized Y zeolite (RCY) was obtained by structural reorganization of the microporous parent Y zeolite (PY), and a series of Ni/RCY catalysts with different metal–acid active sites were prepared by ethylenediamine coordination impregnation, which were used for the BTX production by hydrocracking of naphthalene. The suitable acidity and hierarchical pore structure of Ni/RCY could promote the dispersion of Ni metal, thus forming small-sized nanoparticles, which is in favor of the accessibility and diffusion of naphthalene. Besides, the electron-deficient Ni species between adjacent acid sites and metals could be generated on Ni/RCY, which could improve the metal-support interaction (MSI) and catalytic activity. Ni/RCY-4 catalyst showed the superior hydrocracking conversion (99.7 %), BTX yield (39.1 %), the reaction rate constant (k, 3.1 h⁻¹) and turnover frequency (TOF, 16.6 h⁻¹) of selective hydrocracking. The activation energy was lowest (64.1kJ·mol⁻¹) among the reported catalysts in the literature. Moreover, the possible reaction mechanism of selective hydrocracking of naphthalene to BTX was further proposed.

制备高效加氢裂化催化剂是多环芳烃（PAHs）生产苯、甲苯和二甲苯的关键。本文通过对微孔母体Y沸石（PY）进行结构重组得到了重结晶Y沸石（RCY），并通过乙二胺配位浸渍法制备了一系列具有不同金属酸活性位点的Ni/RCY催化剂，用于萘加氢裂化生产BTX。Ni/RCY合适的酸度和分级孔结构可以促进金属镍的分散，形成小尺寸的纳米颗粒，有利于萘的可及性和扩散。此外，在Ni/RCY上，相邻的酸位和金属之间会产生缺电子的Ni，从而提高了金属-载体相互作用（MSI）和催化活性。Ni/RCY-4催化剂表现出较好的选择性加氢裂化转化率（99.7%）、BTX收率（39.1%）、反应速率常数（k, 3.1 h−1）和周转频率（TOF, 16.6 h−1）。其活化能最低，为64.1kJ·mol−1。进一步提出了萘选择性加氢裂化制BTX的可能反应机理。

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引用次数: 0

Enhanced performance of gasification by blending coal into biomass in a fluidized bed two-stage system 在流化床两级系统中混合煤与生物质提高气化性能

IF 7.5 3区环境科学与生态学 Q2 ENERGY & FUELS

Carbon Resources Conversion

Pub Date : 2025-12-01 Epub Date: 2025-04-15 DOI: 10.1016/j.crcon.2025.100333

Chao Wang , Hanyang Li , Mengjuan Zhang , Zhenglin Wang , Zhennan Han , Xin Jia , Gang Song , Kaixuan Yang , Guoqing Guan , Guangwen Xu

Biomass, blended with a small amount of coal, was fed into a fluidized bed two-stage gasifier to produce low-tar H₂-rich gas through O₂-rich gasification. The blended coal improved the energy density of biomass fuel and also worked as the bed material. For the fluidized bed two-stage gasification, large char particles of biomass and coal tend to accumulate at the bottom of the gasifier (a riser) to form a carbon-rich reaction zone there. Then, the O₂ coming from the bottom of the gasifier mainly reacts with such char, consequently suppressing its interaction with the gases including H₂ from pyrolyzer. Using O₂-rich air with an ER of 0.35 and at gasification temperatures of about 890 °C, gasifying biomass blending 10 wt% coal produced gas containing 13.3 vol% CO, 20.1 vol% CO₂, 4.3 vol% CH₄, and 9.8 vol% H₂, giving an LHV of 4.9 MJ/Nm³_d. Tar content in the produced gas gradually decreased with time, and over the last 6 h the measured content was 0.012 g/Nm³_d. Steady operation was well achieved, showing the performance without ash agglomeration for the O₂-rich gasification of biomass.

将生物质与少量煤混合，送入流化床两段气化炉，通过富o2气化生产低焦油富h2气。混合煤提高了生物质燃料的能量密度，也可作为床料。对于流化床两段气化，生物质和煤的大炭颗粒倾向于积聚在气化炉底部（提升管），在那里形成富碳反应区。然后，来自气化炉底部的O2主要与这种焦炭反应，从而抑制其与热解器产生的H2等气体的相互作用。使用ER为0.35的富o2空气，在890°C的气化温度下，气化生物质混合10 wt%煤产生的含有13.3 vol% CO, 20.1 vol% CO2, 4.3 vol% CH4和9.8 vol% H2的气体，LHV为4.9 MJ/Nm3d。采出气中焦油含量随时间逐渐降低，最后6 h测得含量为0.012 g/Nm3d。稳定运行效果良好，显示了富氧生物质气化无灰结块的性能。

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引用次数: 0

Adsorption of heavy metals from water using teak-based carbon material through graft copolymerization 柚木基碳材料接枝共聚对水中重金属的吸附研究

IF 7.5 3区环境科学与生态学 Q2 ENERGY & FUELS

Carbon Resources Conversion

Pub Date : 2025-12-01 Epub Date: 2025-04-10 DOI: 10.1016/j.crcon.2025.100332

Jin-Wei Zhang , Nguyen Duy Hai , Muhammad Al Kholif , Huan-Ping Chao

This study presents the development of carbonaceous adsorbents derived from teak wood waste for the removal of heavy metals, such as lead (Pb²⁺), copper (Cu²⁺), and cadmium (Cd²⁺) from aqueous solutions. The adsorbents − hydrochar (TH), biochar (TB), and activated carbon (TAC) − were synthesized through thermal and chemical activation processes and further enhanced by graft copolymerization using acrylic acid. Comprehensive characterizations, including SEM, EDS, XPS, BET, and FTIR, revealed that grafting significantly increased surface functional groups (COOH and OH), thereby improving adsorption capacities. Adsorption isotherms followed the Langmuir model, indicating a chemisorption mechanism dominated by ion exchange and complexation. Post-grafting, maximum adsorption capacities for Pb²⁺ increased from 116 mg/g (TH) to 294 mg/g (THG), Cu²⁺ from 84 mg/g (TH) to 164 mg/g (THG), and Cd²⁺ from 106 mg/g (TH) to 170 mg/g (THG). The study concludes that grafted teak-based materials hold high potential as cost-effective and efficient adsorbents for water purification applications, contributing to sustainable waste management and environmental protection.

本研究介绍了从柚木废料中提取的碳质吸附剂的开发，用于去除水溶液中的重金属，如铅（Pb2+），铜（Cu2+）和镉（Cd2+）。通过热活化法和化学活化法合成了氢炭（TH）、生物炭（TB）和活性炭（TAC），并通过丙烯酸接枝共聚进一步增强了吸附剂的性能。SEM、EDS、XPS、BET和FTIR等综合表征表明，接枝能显著增加表面官能团（COOH和OH），从而提高吸附能力。吸附等温线符合Langmuir模型，表明化学吸附机制以离子交换和络合为主。接枝后，Pb2+的最大吸附量从116 mg/g （THG）增加到294 mg/g (THG)， Cu2+从84 mg/g （THG）增加到164 mg/g (THG)， Cd2+从106 mg/g （TH）增加到170 mg/g （THG）。该研究得出结论，接枝柚木基材料在水净化应用中具有很高的成本效益和高效吸附剂的潜力，有助于可持续的废物管理和环境保护。

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引用次数: 0

Bio-based papers from seaweed and coconut fiber: sustainable materials for a greener future 海藻和椰子纤维制成的生物基纸：绿色未来的可持续材料

IF 7.5 3区环境科学与生态学 Q2 ENERGY & FUELS

Carbon Resources Conversion

Pub Date : 2025-12-01 Epub Date: 2025-04-03 DOI: 10.1016/j.crcon.2025.100329

Nida Khan , K. Sudhakar , R. Mamat

The paper industry’s reliance on deforestation for wood pulp has raised environmental concerns and led to fluctuating prices. This study explores the potential of seaweed (Sargassum wightii) and coconut waste, abundant in Malaysia, as sustainable alternatives for biopaper production. These materials offer a promising solution to mitigate deforestation, address waste issues, and promote sustainable manufacturing. Three biopaper samples were fabricated using 100 % seaweed, 100 % coconut fiber, and a 50/50 blend of seaweed and coconut fiber. The blending of seaweed and coconut fiber allows for customising biopaper properties, such as density and flexibility, making it suitable for a broader range of applications. To characterise these biopapers, scanning electron microscopy (SEM), thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) were employed. Additionally, the grammage (GSM) of each biopaper was determined to compare it with traditional wood pulp-based paper to explore its potential applications. FTIR analysis revealed a wide peak between 3343.47 cm⁻¹ and 3355.75 cm⁻¹ in all samples, confirming the existence of O–H bonds often observed in alcohols. TGA examination at 900 °C demonstrated considerable char production, with the seaweed-based bio paper yielding the most char (26.6 %), followed by the coconut-based paper (15.17 %) and the seaweed-coconut mix (13.49 %). The XRD examination indicates that the structure is largely amorphous, with broad peaks in the 2θ range of 11° to 23°. Water absorption test showed that all biopaper samples were hydrophilic; absorption rates for seaweed-based biopaper were 128 g/m², coconut-based biopaper was 580 g/m², and the mix of seaweed and coconut was 446 g/m². High biodegradability was demonstrated by soil burial tests, which indicated weight reductions of 23 %, 57 %, and 64 % for the blended biopaper, seaweed, and coconut after 14 days, respectively. These results highlight Sargassum wightii’s potential as a sustainable biopaper material. When mixed with coconut fiber waste, it can increase density and broaden its possible applications, providing a viable alternative to wood-based papers while also encouraging environmental sustainability.

造纸业依赖砍伐森林生产木浆，这引起了人们对环境的担忧，并导致价格波动。本研究探索了马来西亚丰富的海藻（马尾藻）和椰子废料作为生物纸生产的可持续替代品的潜力。这些材料为减轻森林砍伐、解决废物问题和促进可持续制造业提供了一个有希望的解决方案。用100%海藻、100%椰子纤维和50/50海藻和椰子纤维混合制备了三种生物纸样品。海藻和椰子纤维的混合可以定制生物纸的特性，如密度和灵活性，使其适用于更广泛的应用。利用扫描电子显微镜（SEM）、热重分析（TGA）、傅里叶变换红外光谱（FTIR）和x射线衍射（XRD）对这些生物膜进行了表征。此外，确定了每种生物纸的克重（GSM），并将其与传统木浆基纸进行比较，以探索其潜在的应用前景。FTIR分析显示，在所有样品中，3343.47 cm−1和3355.75 cm−1之间有一个宽峰，证实了醇中常见的O-H键的存在。900°C时的TGA测试显示出相当大的碳产量，其中以海藻为基础的生物纸的碳产量最高（26.6%），其次是椰子纸（15.17%）和海藻-椰子混合物（13.49%）。XRD分析表明，该材料在11°~ 23°的2θ范围内具有较宽的峰，结构基本呈非晶态。吸水试验表明，所有生物纸样品均具有亲水性；海藻基生物纸的吸收率为128 g/m2，椰子基生物纸的吸收率为580 g/m2，海藻和椰子的混合吸收率为446 g/m2。土壤掩埋试验表明，高生物降解性表明，混合生物纸、海藻和椰子在14天后分别减轻了23%、57%和64%的重量。这些结果突出了马尾藻作为可持续生物纸材料的潜力。当与椰子纤维废物混合时，它可以增加密度并扩大其可能的应用范围，为木基纸提供可行的替代品，同时也鼓励环境的可持续性。

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