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Reuse Potential of Carbon Nanotubes in Removing Cadmium from Water 碳纳米管去除水中镉的再利用潜力
Pub Date : 2018-07-31 DOI: 10.2174/2210681207666170525152904
Abdullah Al-Mamun, M. Al-Khatib, R. Danial, A. Salihu, M. Alam
This study was aimed at determining the optimum condition for desorption of cadmium loaded carbon nanotubes (cCNTs) for re-adsorption of the same metal ion. Two independent parameters (contact time and HCl concentrations) were subjected to statistical optimization by face centered central composite design (FCCCD). Maximum desorption cCNT was achieved under the optimized conditions of pH 1.40 and 130 min contact time. The coefficient of determination (R2) of the developed model was found to be 0.988, indicating the fitness of the experimental and predicted responses. Following the desorption experiments, the efficiency of re-adsorption of Cd2+ by the CNT was 61.08%. The reduced re-adsorption capacity of CNT could be linked to modification of its sorption sites based on acid desorption process.
本研究旨在确定负载镉的碳纳米管(cCNTs)解吸的最佳条件,以重新吸附相同的金属离子。通过面心中心复合设计(FCCCD)对两个独立参数(接触时间和HCl浓度)进行统计优化。在pH为1.40、接触时间为130 min的优化条件下,cCNT的解吸效果最佳。建立的模型的决定系数(R2)为0.988,表明实验响应与预测响应的拟合性。通过解吸实验,碳纳米管对Cd2+的再吸附效率为61.08%。碳纳米管再吸附能力的降低可能与基于酸解吸过程的吸附位点的修饰有关。
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引用次数: 0
Development, Optimization and Evaluation of Nanoparticle Gel Formulation Using Lemon Grass Oil 柠檬草油纳米凝胶配方的研制、优化与评价
Pub Date : 2018-07-31 DOI: 10.2174/2210681207666170525153329
A. K. Jena, S. Beg, V. Abbhi, K. A. Chowdary
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引用次数: 0
Synthesis of Magnetite Nanoparticles Under UV/IR Irradiation: Investigation of Effects on the Properties 紫外/红外辐射合成纳米磁铁矿及其对其性能影响的研究
Pub Date : 2018-07-31 DOI: 10.2174/2210681207666170509165047
Shirzad Jouybar, Farshad Yazdani
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引用次数: 0
On Certain Topological Indices of Titanium dioxide Nanosheet and Nanotube. 二氧化钛纳米片和纳米管的若干拓扑指标研究。
Pub Date : 2018-07-31 DOI: 10.2174/2210681207666170616115148
S. Prabhu, M. Arulperumjothi, G. Murugan
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引用次数: 9
Nanoemulsion: The Emerging Contrivance in the Field of Nanotechnology 纳米乳液:纳米技术领域的新兴发明
Pub Date : 2018-07-31 DOI: 10.2174/2210681207666170418123826
D. Das, P. Sahu, A. Chaurasia, V. Mishra, S. Kashaw
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引用次数: 5
Fabrication and Characterization of Oral Dissolving Films for Tuberculosis Drug Delivery 结核药物口服溶出膜的制备与表征
Pub Date : 2018-07-31 DOI: 10.2174/221068120701170419144443
Sowmya Selvaraj and Dhesingh Ravi Shankaran
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引用次数: 2
Carbon-Cobalt Nanostructures as an Efficient Adsorbent of Malachite Green 碳钴纳米结构对孔雀石绿的高效吸附剂
Pub Date : 2018-07-31 DOI: 10.2174/2210681207666170509145222
H. Hammud, B. Hamaoui, Nada H. Noubani, Xingliang Feng, Zhongbin Wu, K. Müllen, K. Ayub
Carbon-cobalt nanostructures 1 and 2 were prepared by pyrolysis of the cisdichlorobis(1,10-phenanthroline-N,N')-cobalt(II) complex 3 in the absence or presence of anthracene respectively. DFT calculation was used to estimate ligand dissociation energy of cobalt complex, the energy cost for the formation of cobalt particles which catalyze the formation of carbon nanostructures. FE-SEM analysis indicates that 1 and 2 contain 3D nanostructure hierarchical porous graphitic carbons HPCGs wrapping cobalt particles in spheres and rods, with mesopores and macropores ranging from 10-100 nm. TEM analysis indicated that nanostructures 1 and 2 consist of graphite layers as well as single wall and bamboo multiple wall carbon nanotubes. Crystalline cobalt catalyst nanoparticles were found wrapped in ordered graphene layers and also at the tips of the bamboo-shaped disordered multiwall carbon nanotubes. TEM also showed porous surfaces. Both nanostructures 1 and 2 were used as adsorbents to uptake malachite green dye (MG) from aqueous solution. Adsorption isotherms of MG by adsorbents 1 and 2 were fitted in terms of Langmuir, Freundlich, Temkin, and D-R models. The adsorption capacity of 2 (492 mg/g) was higher than that of 1 (200 mg/g). Thermodynamic adsorption studies indicated that the sorption process was spontaneous and exothermic. A pseudo-first order model has been adopted to describe the kinetics of the adsorption process as well as the activated thermodynamic parameters. Column kinetic adsorption of MG by 2 was best fitted by the Thomas model. The column capacity was found to be 64 mg. The adsorbent can be regenerated and proved efficient for three consecutive cycles. A R T I C L E H I S T O R Y Received: November 01, 2016 Revised: April 02, 2017 Accepted: April 07, 2017 DOI: 10.2174/2210681207666170509145222
分别在无蒽或有蒽的情况下,对顺二氯(1,10-菲罗啉-N,N′)-钴(II)配合物3进行热解制备了碳-钴纳米结构1和2。采用DFT计算方法估计钴配合物的配体解离能,即钴颗粒催化碳纳米结构形成的能量成本。FE-SEM分析表明,1和2含有三维纳米结构层叠多孔石墨碳HPCGs包裹钴颗粒呈球形和棒状,具有10 ~ 100 nm的中孔和大孔。TEM分析表明,纳米结构1和2由石墨层、单壁碳纳米管和竹多壁碳纳米管组成。晶体钴催化剂纳米颗粒被包裹在有序的石墨烯层中,也被包裹在竹状无序多壁碳纳米管的尖端。TEM还显示了多孔表面。采用纳米结构1和纳米结构2作为吸附剂吸附孔雀石绿染料(MG)。采用Langmuir、Freundlich、Temkin和D-R模型拟合吸附剂1和2对MG的吸附等温线。2的吸附量(492 mg/g)高于1的吸附量(200 mg/g)。热力学吸附研究表明,吸附过程是自发的、放热的。采用拟一阶模型来描述吸附过程动力学和活化热力学参数。Thomas模型最适合于MG对2的柱动力学吸附。柱容量为64毫克。该吸附剂可再生,连续循环三次,效果良好。A R T I C L E H I S T O R Y收稿日期:2016年11月1日修稿日期:2017年04月02日收稿日期:2017年04月07日DOI: 10.2174/2210681207666170509145222
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引用次数: 12
Lipid Based Nanocarriers for Delivery of Anti-HIV Drugs: A Mini Review 脂基纳米载体用于抗hiv药物的递送:综述
Pub Date : 2018-07-31 DOI: 10.2174/2210681207666170612084243
Diksha Jindal
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引用次数: 2
Antineoplastic and Antimicrobial Potential of Novel Phytofabricated Silver Nanoparticles from Pterospermum acerifolium Leaf Extract 蕨菜叶提取物制备的新型银纳米颗粒的抗肿瘤和抗菌潜力
Pub Date : 2018-07-31 DOI: 10.2174/2210681207666170607154529
Navdeep Raghuwanshi, Alok Patel, N. Arora, Ritu Varshney, Amit Kumar Srivastava, V. Pruthi
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引用次数: 2
Meet Our Co-Editor 认识我们的联合编辑
Pub Date : 2018-07-31 DOI: 10.2174/221068120802180801160133
H. Karimi-Maleh
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引用次数: 0
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