scholarly journals Synthesis of a novel isatin and ethylenediamine modified resin and effective adsorption behavior towards Orange G

RSC Advances ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 801-809 ◽  
Author(s):  
Chai Yin ◽  
Chao Xu ◽  
Wenhao Yu ◽  
Yuxiang Jia ◽  
Weizhi Sun ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Functional Groups ◽  
Adsorption Behavior ◽  
Acid Dye ◽  
Adsorption Performance ◽  
Orange G ◽  
Enhanced Adsorption ◽  
Modified Resin

Three types of resins prepared by carbonyl/amino modification based on CMPS displayed enhanced adsorption capacity towards acid dye Orange G and the resin 135-I-EDA that has two functional groups showed the best adsorption performance.

scholarly journals Adsorption performance of antimony by modified iron powder

RSC Advances ◽  
2019 ◽  
Vol 9 (54) ◽  
pp. 31645-31653 ◽  
Author(s):  
Chun Zhang ◽  
Haiyan Jiang ◽  
Yumei Deng ◽  
Aihe Wang
Keyword(s):  
Adsorption Capacity ◽  
Ball Milling ◽  
Iron Powder ◽  
Low Cost ◽  
Adsorption Behavior ◽  
Acid Modification ◽  
Iron Powders ◽  
Adsorption Performance ◽  
Application Potential

Modified iron powders were obtained by ball-milling and acid modification and the adsorption behavior and mechanism for Sb(iii) and Sb(v) analyzed. The improved adsorption capacity and low cost show the application potential of the modified material.

Facile synthesis of magnetic hierarchical MgO–MgFe2O4 composites and their adsorption performance towards Congo red

RSC Advances ◽  
2014 ◽  
Vol 4 (53) ◽  
pp. 28119-28125 ◽  
Author(s):  
Xiuying Han ◽  
Peng Tian ◽  
Hongchang Pang ◽  
Qiang Song ◽  
Guiling Ning ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Magnetic Separation ◽  
Congo Red ◽  
Separation Performance ◽  
Facile Synthesis ◽  
Adsorption Performance ◽  
Enhanced Adsorption

MgO–MgFe2O4 composites have been synthesized by a facile method, and they showed enhanced adsorption capacity and good magnetic separation performance.

Enhanced Adsorption of Dimethyl Sulfide by Micronized Carbonaceous Adsorbent

2010 ◽  
Vol 158 ◽  
pp. 76-80
Author(s):  
Ming Wang ◽  
Zheng Hong Huang ◽  
Fei Yu Kang ◽  
Guo Sheng Gai
Keyword(s):  
Adsorption Capacity ◽  
Dimethyl Sulfide ◽  
Activated Carbons ◽  
Adsorption Property ◽  
Environmentally Friendly ◽  
Chemically Modified ◽  
Adsorption Performance ◽  
Secondary Pollution ◽  
Enhanced Adsorption ◽  
Carbonaceous Adsorbent

This study was focused on investigation of the adsorption property of micronized carbonaceous adsorbent for odorant dimethyl sulfide. Adsorption experiments were also conducted for the adsorption of dimethyl sulfide by chemically-modified carbonaceous adsorbent for comparison. It was shown that the adsorption capacity of micronized carbonaceous adsorbent increased by 94% compared with pristine powdered activated carbons (PACs), and increased by 42% compared with chemically-modified PACs. The micronized carbon demonstrated not only an enhanced adsorption performance for dimethyl sulfide, but also an environmentally-friendly adsorbent without secondary pollution.

Guanidine sulfate-assisted synthesis of hexagonal WO3 nanoparticles with enhanced adsorption properties

2015 ◽  
Vol 44 (16) ◽  
pp. 7419-7427 ◽  
Author(s):  
Wanjun Mu ◽  
Mei Li ◽  
Xingliang Li ◽  
Zongping Ma ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Specific Surface ◽  
Adsorption Capacity ◽  
Surface Area ◽  
Functional Groups ◽  
Specific Surface Area ◽  
Adsorption Properties ◽  
Large Specific Surface Area ◽  
Enhanced Adsorption

The hexagonal WO3 nanowires prepared with the assistance of C2H10N·H2SO4 possess a large specific surface area and numerous adsorption functional groups, consequently improving the Sr2+ adsorption capacity considerably.

scholarly journals Enhanced adsorption performance for aromatic sulfur compounds over hierarchical structure AgX zeolite

2021 ◽  
Author(s):  
Kunhong Jiang ◽  
Zhenyu Li ◽  
Zexuan Zheng ◽  
Jiefei Li ◽  
Xing-Yue Qi ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Hierarchical Structure ◽  
Sulfur Compounds ◽  
Promising Material ◽  
Adsorption Performance ◽  
Enhanced Adsorption

The original NaX is a promising material for removing the organosulfur compoundds in the fuel. However, its utilization had been challenging, owning to its limited adsorption capacity of refractory sulfur...

scholarly journals Enhanced adsorption capacity and selectivity towards strontium ions in aqueous systems by sulfonation of CO2 derived porous carbon

RSC Advances ◽  
2017 ◽  
Vol 7 (86) ◽  
pp. 54546-54553 ◽  
Author(s):  
S. Baik ◽  
H. Zhang ◽  
Y. K. Kim ◽  
D. Harbottle ◽  
J. W. Lee
Keyword(s):  
Adsorption Capacity ◽  
Porous Carbon ◽  
Aqueous Systems ◽  
Adsorption Performance ◽  
Removal Capacity ◽  
Strontium Ions ◽  
Enhanced Adsorption

Sulfonated porous carbon (PC-SO3H) shows enhanced Sr2+ adsorption performance in terms of removal capacity, kinetics, and selectivity.

scholarly journals Synthesis of mesoporous lanthanum hydroxide with enhanced adsorption performance for phosphate removal

RSC Advances ◽  
2019 ◽  
Vol 9 (27) ◽  
pp. 15257-15264 ◽  
Author(s):  
Kyungmin Kim ◽  
Dujin Kim ◽  
Taeyeon Kim ◽  
Bong-Geun Kim ◽  
Donghyun Ko ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Phosphate Removal ◽  
High Adsorption ◽  
Efficient Removal ◽  
Lanthanum Hydroxide ◽  
Adsorption Performance ◽  
High Adsorption Capacity ◽  
Enhanced Adsorption

MLHO exhibited outstanding phosphate removal performance with a high adsorption capacity as well as efficient removal in low P concentrations.

Enhanced Adsorption for P-Chlorophenol by Ammonia Modified Activated Carbon

2013 ◽  
Vol 663 ◽  
pp. 807-812
Author(s):  
Guo Yang ◽  
Yan Jie ◽  
Hu Yang ◽  
Chen Hong Zhang
Keyword(s):  
Activated Carbon ◽  
Adsorption Capacity ◽  
Functional Groups ◽  
Kinetic Studies ◽  
Effect Of Temperature ◽  
Order Kinetic ◽  
Surface Functional Groups ◽  
Order Kinetic Model ◽  
Pseudo Second Order ◽  
Enhanced Adsorption

To investigate the influence of N-containing surface functional groups on adsorption capacity of AC, the activated carbon (AC) was modified with ammonia gas at 650 °C. Surface functional groups were quantitatively analyzing by Boehm titration. The effect of temperature on adsorption capacity suggested higher temperature is favourable. The influence of pH indicated the adsorption was favorable in acidic solution. The adsorption isotherms were fitted by Langmuir model and Freundlich model. Moreover, kinetic studies showed the adsorption of phenol onto adsorbents was followed by pseudo-second-order kinetic model. The adsorption capacity of ammoniated AC for p-chlorophenol was greatly improved.

Desorption and Reusable Properties of a New Boron-Selective Hybrid Gel Adsorbent

2011 ◽  
Vol 233-235 ◽  
pp. 2692-2695
Author(s):  
Xiu Shen Ye ◽  
Xiao Lei Gao ◽  
Hai Ning Liu ◽  
Zhi Jian Wu
Keyword(s):  
Mechanical Strength ◽  
Adsorption Capacity ◽  
Functional Groups ◽  
Adsorption Behavior ◽  
Hybrid Gel ◽  
Adsorption Desorption ◽  
Hcl Solution ◽  
Boron Adsorption

A hybrid gel adsorbent bearing boron-selective functional groups was prepared by the reaction of bis(trimethoxysilylpropyl)amine (TSPA) and a gel precursor in water. The gel precursor was synthesized from (3-glycidoxypropyl)trimethoxysilane (GPTMS) andN-methylglucamine (MG). The boron adsorption behavior of the gel and a commercial boron-selective resin D564 was investigated. The gel adsorbent has a suitable mechanical strength and an adsorption capacity of 2.00 mmol g-1, which is higher than that of the resin D564 (1.64 mmol g­-1). Boron can be desorbed from both the gel and the resin D564 with a 0.25 mol L-1HCl solution. The good reusability of both the gel and the resin D564 was confirmed by fourteen consecutive adsorption-desorption-regeneration cycles.

scholarly journals Enhanced adsorption performance of methylene blue from aqueous solutions onto modified adsorbents prepared from sewage sludge

2018 ◽  
Vol 78 (4) ◽  
pp. 803-813
Author(s):  
Tao Chen ◽  
Bo Yan ◽  
Da-Mao Xu ◽  
Li-li Li
Keyword(s):  
Methylene Blue ◽  
Sewage Sludge ◽  
Adsorption Capacity ◽  
Batch Adsorption ◽  
Maximum Adsorption Capacity ◽  
Order Model ◽  
Adsorption Performance ◽  
Pseudo Second Order ◽  
Enhanced Adsorption ◽  
Modified Adsorbents

Abstract In the present work, an attractive and creative adsorbent derived from sewage sludge was freshly fabricated via pyrolysis technology, followed by modification for improving the absorptive ability. First, the (NH4)2S2O8 modified pyrolytic sludge (MSAP) was selected from 19 modified pyrolytic sludges for the highest removal efficiency and adsorption capacity for methylene blue (MB). Then, the adsorption performance for MB of MSAP was compared systematically with the pristine adsorbent (MSDW) by batch adsorption experiments. The main conclusions were that the adsorption process was better fitted with the Langmuir model, and the maximum adsorption capacity (qmax) of MSAP was observed to be 149.05 mg g−1. Moreover, the adsorption kinetics data showed a good fit with the pseudo second order model; when the addition of MSAP was 1.0 g·L−1, the rate constant was 0.05 g·mg−1·min−1, which was far greater than that of the other modified adsorbents.

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