Fe–Mn–Ce oxide-modified biochar composites as efficient adsorbents for removing As(III) from water: adsorption performance and mechanisms

2019 ◽  
Vol 26 (17) ◽  
pp. 17373-17382 ◽  
Author(s):  
Xuewei Liu ◽  
Minling Gao ◽  
Weiwen Qiu ◽  
Zulqarnain Haider Khan ◽  
Nengbin Liu ◽  
...  
Keyword(s):  
Water Adsorption ◽  
Adsorption Performance ◽  
Modified Biochar

Enhanced adsorption performance of tetracycline in aqueous solutions by methanol-modified biochar

2014 ◽  
Vol 248 ◽  
pp. 168-174 ◽  
Author(s):  
Xiang-Rong Jing ◽  
Yuan-Ying Wang ◽  
Wu-Jun Liu ◽  
Yun-Kun Wang ◽  
Hong Jiang
Keyword(s):  
Aqueous Solutions ◽  
Adsorption Performance ◽  
Modified Biochar ◽  
Enhanced Adsorption

scholarly journals Enhanced adsorption of sulfonamide antibiotics in water by modified biochar derived from bagasse

2019 ◽  
Vol 17 (1) ◽  
pp. 1309-1316 ◽  
Author(s):  
Pinzhu Qin ◽  
Dawei Huang ◽  
Rong Tang ◽  
Fangqun Gan ◽  
Ying Guan ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Adsorption Process ◽  
Optimum Conditions ◽  
Sulfonamide Antibiotics ◽  
Adsorption Performance ◽  
Modified Biochar ◽  
Enhanced Adsorption

AbstractIn this study, biochars derived from bagasse were prepared and their ability for the adsorption of four kinds of sulfonamide antibiotics (sulfamethoxazol, thiazole, methylpyrimidine, dimethylpyrimidine) was investigated. Results showed that the modified biochar can efficiently adsorb sulfonamides in water. The biochar obtained at 500oC and modified with 30% hydrogen peroxide was chosen as the adsorbent. Under optimum conditions, pH 4 and 35°C, great adsorption performance was exhibited in the adsorption process of the four sulfonamide antibiotics. The productivity of the modified biochar was ~ 89% compared to un-modified biochar which is ~31%. The successful preparation of biochar from bagasse indicates that it is a good way to reuse the resources. Besides the adsorption of antibiotics, the obtained material also has a great prospect in the removal of other pollutants.

Trititanate Nanotubes as highly efficient adsorbent for fluoride removal from water: Adsorption performance and uptake mechanism

2016 ◽  
Vol 4 (4) ◽  
pp. 4754-4768 ◽  
Author(s):  
Prathibha Chinnakoti ◽  
Ranganayakulu K. Vankayala ◽  
Avinash L.A. Chunduri ◽  
Lakshmana Reddy Nagappagari ◽  
Shankar V. Muthukonda ◽  
...  
Keyword(s):  
Water Adsorption ◽  
Fluoride Removal ◽  
Uptake Mechanism ◽  
Adsorption Performance ◽  
Highly Efficient ◽  
Efficient Adsorbent

Evaluation of the Water Adsorption Performance of Wakkanai Siliceous Shale Supported by Chlorides

2009 ◽  
Vol 35 (6) ◽  
pp. 602-607 ◽  
Author(s):  
Saya Nakabayashi ◽  
Katsunori Nagano ◽  
Makoto Nakamura ◽  
Junya Togawa ◽  
Asami Kurokawa
Keyword(s):  
Water Adsorption ◽  
Adsorption Performance ◽  
Siliceous Shale

An alkali modified biochar for enhancing Mn2+ adsorption: Performance and chemical mechanism

2020 ◽  
Vol 248 ◽  
pp. 122895 ◽  
Author(s):  
Qiang An ◽  
Yue Miao ◽  
Bin Zhao ◽  
Zheng Li ◽  
Sheng Zhu
Keyword(s):  
Chemical Mechanism ◽  
Adsorption Performance ◽  
Modified Biochar

scholarly journals Screening of metal–organic frameworks for water adsorption heat transformation using structure–property relationships

RSC Advances ◽  
2020 ◽  
Vol 10 (57) ◽  
pp. 34621-34631
Author(s):  
Min Xu ◽  
Zhangli Liu ◽  
Xiulan Huai ◽  
Lanting Lou ◽  
Jiangfeng Guo
Keyword(s):  
Water Adsorption ◽  
Metal Organic Frameworks ◽  
Quantitative Structure ◽  
Structure Property ◽  
Adsorption Performance ◽  
Structure Property Relationships ◽  
Structure Property Relationship ◽  
Physicochemical Features ◽  
Metal Organic ◽  
Heat Transformation

Quantitative structure–property relationship models that correlate the water adsorption performance of MOFs to their physicochemical features have been established.

Enhanced removal of NO3-N from water using Fe-Al modified biochar: behavior and mechanism

2019 ◽  
Vol 80 (10) ◽  
pp. 2003-2012 ◽  
Author(s):  
Hanyang You ◽  
Wenying Li ◽  
Yi Zhang ◽  
Zilin Meng ◽  
Zhenxiao Shang ◽  
...  
Keyword(s):  
Ligand Exchange ◽  
Adsorption Process ◽  
Maximum Adsorption Capacity ◽  
Batch Experiments ◽  
Order Model ◽  
Freundlich Model ◽  
Adsorption Mechanisms ◽  
Adsorption Performance ◽  
Modified Biochar ◽  
N Removal

Abstract To remove NO3-N from water, coconut shell biochar (CSB) was modified by a solution of FeCl3, a solution of AlCl3 and a mixture solution of FeCl3 and AlCl3 respectively. The obtained modified biochar with the best effect of NO3-N adsorption was screened out to explore the adsorption behavior and mechanism of NO3-N removal by batch experiments and kinetics and thermodynamics and correlated characterization. The results indicated that the mixture solution of FeCl3- and AlCl3- modified CSB (Fe-Al/CSB) showed the best adsorption performance for NO3-N removal. Iron and aluminum elements existed on the surface of Fe-Al/CSB in the form of FeOOH, Fe2O3, Fe2+, and Al2O3 respectively. The adsorption process could reach equilibrium in 20 min. An acidic condition was favorable for NO3-N adsorption. The presence of coexisting anions was not conducive for NO3-N adsorption. The quasi-second-order model and Freundlich model could be well fitted in the adsorption process. The maximum adsorption capacity of Fe-Al/CSB fitted by the Langmuir model could reach 34.20 mg/g. The adsorption of NO3-N by Fe-Al/CSB was an endothermic and spontaneous process. Ligand exchange and chemical redox reaction were the NO3-N adsorption mechanisms which led to NO3-N adsorption by Fe-Al/CSB.

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