| Title: | Effective adsorption of zeolite/carbon composite molecular sieve synthesized from spent bleaching earth |
| Author(s): | Zuo S; Cao X; Liu W; Liu T; Li X; Yao C; Xu R; Fu Y; |
| Address: | "Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China. Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China. yaochao420@163.com. Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing, 210094, China. fuyongsheng@mail.njust.edu.cn" |
| Journal Title: | Environ Sci Pollut Res Int |
| DOI: | 10.1007/s11356-021-17552-w |
| ISSN/ISBN: | 1614-7499 (Electronic) 0944-1344 (Linking) |
| Abstract: | "Spent bleaching earth (SBE) as an industrious solid rubbish seriously causes the environmental pollution problem. The resourceful utilization of SBE has become increasingly important. In this work, silicon and carbon ingredients derived from SBE were coincidently employed to synthesize a 4A zeolite/carbon composite molecular sieve (4A/CMS). Therein, the graphite carbon components in the form of porous lamellar scattering among the interlayer, surface, and periphery of 4A zeolite promote the rate of mass transfer for the lipophilic gas, which can effectively improve the adsorption property for the volatile organic compounds. The obtained 4A/CMS has large specific surface area, hierarchical pore structure, satisfactory adsorption capacity, and regeneration performance, and its equilibrium adsorption capacity of p-xylene can achieve 209.57 mg.g(-1). The pseudo-first-order rate equation is appropriate for the adsorption kinetics. In the end, the formation mechanism of 4A/CMS was illuminated in detail. square Spent bleaching earth (SBE) as an industrious solid rubbish were utilized resourcefully. Silicon and carbon ingredients from SBE were coincidently employed to synthesize 4A/CMS. Graphitic carbon with hierarchical pore promoted the rate of mass transfer of organic gas. 4A/CMS exhibited excellent adsorption capacity and regeneration performance of p-xylene" |
| Keywords: | "Adsorption Carbon Silicon Sodium Compounds *Water Pollutants, Chemical/analysis *Zeolites Adsorption capacity Carbon molecular sieve Spent bleaching earth Zeolite;" |
| Notes: | "MedlineZuo, Shixiang Cao, Xiaoman Liu, Wenjie Liu, Tianhua Li, Xiazhang Yao, Chao Xu, Rong Fu, Yongsheng eng 51702026/Innovative Research Group Project of the National Natural Science Foundation of China/ HAB201952/Huai'an Municipal Science and Technology Bureau/ CE20215031/Changzhou Science and Technology Bureau/ Germany 2021/12/03 Environ Sci Pollut Res Int. 2022 Apr; 29(17):25916-25924. doi: 10.1007/s11356-021-17552-w. Epub 2021 Dec 1" |
