粉煤灰基介孔铝取代托贝莫来石去除水中Cd<sup>2+</sup>

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Abstract Mesoporous aluminum-incorporated tobermorite (TFA) with different Al/Si molar ratios were hydrothermally synthesized from fly ash (FA). The physicochemical properties of FA and TFA were characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD), Field emission environment scanning electron microscope (SEM), Specific surface aperture analyzer, and Fourier transform infrared spectroscopy (FTIR). It was found that the specific surface area, pore volume and average pore size of TFA1 (Ai/Si=0.4) were 74.30m²/g, 0.4495cm³/g and 24.20nm, respectively, while those of TFA2 (Ai/Si=0.1) were 99.48m²/g, 0.5218cm³/g and 20.98nm, respectively. They were much higher than those of FA (1.77m²/g, 0.004338cm³/g and 9.79nm). The adsorption kinetics data of FA, TFA1 and TFA2 for Cd²⁺ were more consistent with the pseudo-second-order kinetics model. The Langmuir isotherm model provided better description of the Cd²⁺ adsorption isotherm, and the maximum adsorption capacity for Cd²⁺ on TFA1 was 205.76mg/g, which was much higher than those on FA and TFA2 (94.58mg/g and 107.30mg/g). The removal mechanism of Cd²⁺ on TFA were analyzed by XRD, SEM-X-ray energy dispersive spectrometer and FTIR. The results show that the mesoporous structure of TFA, a large amount of -OH, the ion exchange of Ca²⁺ and Cd²⁺, and the precipitation of CdCO₃ and Cd(OH)₂ played important roles in removing Cd²⁺. This work shows that the TFA can be used as an efficient and inexpensive adsorbent for Cd²⁺, which provides a potential application method for resource utilization of FA and the treatment of wastewater containing Cd²⁺ and other heavy metal ions.

Key words： fly ash tobermorite adsorption Cd²⁺

Received: 28 July 2022

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X703

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	XU Lin-hao
	ZHENG Bo-ying
	YANG Long-sheng
	WU Dai-she
	WANG Ze-hua

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XU Lin-hao,ZHENG Bo-ying,YANG Long-sheng等. Removal of Cd²⁺ from water by fly ash-based mesoporous aluminum-incorporated tobermorite[J]. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(4): 1663-1671.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2023/V43/I4/1663

[1]	Tchounwou P B, Yedjou C G, Patlolla A K, et al. Heavy metal toxicity and the environment[J]. Experientia Supplementum, 2012,101:133-164.
[2]	Duan J, Su B. Removal characteristics of Cd(II) from acidic aqueous solution by modified steel-making slag[J]. Chemical Engineering Journal, 2014,246:160-167.
[3]	Fu F, Wang Q. Removal of heavy metal ions from wastewaters:A review[J]. Journal of Environmental Management, 2011,92(3):407-418.
[4]	曾峤婧,周鑫,黄超,等.白腐菌联合纳米零价铁强化去除水中Cd(Ⅱ)[J]. 中国环境科学, 2022,42(7):3174-3183. Zeng Q J, Zhou X, Huang C, et al. Enhanced removal of Cd(Ⅱ) from aqueous solution by nanoscale zero-valent iron coupling with white rot fungus[J]. China Environmental Science, 2022,42(7):3174-3183.
[5]	王露露,王刚,杨丽娟,等.混合有机配位剂对DTSPAM去除水中Cd2+性能的影响[J]. 中国环境科学, 2022,42(3):1209-1219. Wang L L, Wang G, Yang L J, et al. Effect of mixed organic coordination agents on the removal performance of Cd2+ in water with heavy metal floccumant DTSPAM[J]. China Environmental Science, 2022,42(3):1209-1219.
[6]	Burakov A E, Galunin E V, Burakova I V, et al. Adsorption of heavy metals on conventional and nanostructured materials for wastewater treatment purposes:A review[J]. Ecotoxicology and Environmental Safety, 2018,148:702-712.
[7]	Wang S, Wu H. Environmental-benign utilisation of fly ash as low-cost adsorbents[J]. Journal of Hazardous Materials, 2006,136(3):482-501.
[8]	Cetin S, Pehlivan E. The use of fly ash as a low cost, environmentally friendly alternative to activated carbon for the removal of heavy metals from aqueous solutions[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2007,298(1/2):83-87.
[9]	Ahmed M J K, Ahmaruzzaman M. A review on potential usage of industrial waste materials for binding heavy metal ions from aqueous solutions[J]. Journal of Water Process Engineering, 2016,10:39-47.
[10]	Babel S, Kurniawan T A. Low-cost adsorbents for heavy metals uptake from contaminated water:a review[J]. Journal of Hazardous Materials, 2003,97(1-3):219-243.
[11]	王建新,李晶,赵仕宝,等.中国粉煤灰的资源化利用研究进展与前景[J]. 硅酸盐通报, 2018,37(12):3833-3841. Wang J X, Li J, Zhao S B, et al. Research progress and prospect of resource utilization of fly ash in China[J]. Bullrtin of the Chinese Ceramic Society, 2018,37(12):3833-3841.
[12]	Wang J, Teng X, Wang H, et al. Characterizing the metal adsorption capability of a class F coal fly ash[J]. Environmental Science & Technology, 2004,38(24):6710-6715.
[13]	吴元锋,仪桂云,刘全润,等.粉煤灰综合利用现状[J]. 洁净煤技术, 2013,19(6):100-104. Wu Y F, Yi G Y, Liu Q R, et al. Current situation of comprehensive utilization of fly ash[J]. Clean Coal Technology, 2013,19(6):100-104.
[14]	黄训荣.改性粉煤灰制备工艺优化及对Pb(Ⅱ)和Cd(Ⅱ)的吸附性能研究[D]. 杨凌:西北农林科技大学, 2020. Huang X R. Study on optimization of preparation technology for modified fly ash and its adsorption properties for Pb(Ⅱ) and Cd(Ⅱ)[D]. Yang Ling:Northwest A&F University, 2020.
[15]	Papandreou A, Stournaras C J, Panias D. Copper and cadmium adsorption on pellets made from fired coal fly ash[J]. Journal of Hazardous Materials, 2007,148(3):538-547.
[16]	黄训荣,赵航航,张贵宾,等.改性粉煤灰对废水中镉的吸附作用[J]. 应用生态学报, 2019,30(9):3215-3223. Huang X R, Zhao H H, Zhang G B, et al. Adsorption of Cd2+ from wastewater by modified fly ash[J]. Chinese Journal of Applied Ecology, 2019,30(9):3215-3223.
[17]	Li X B, Ye J J, Liu Z H, et al. Microwave digestion and alkali fusion assisted hydrothermal synthesis of zeolite from coal fly ash for enhanced adsorption of Cd(II) in aqueous solution[J]. Journal of Central South University, 2018,25(1):9-20.
[18]	杨文焕,陈阿辉,李卫平,等.碱熔融-微波晶化法合成粉煤灰沸石及其对Cd2+的吸附[J]. 化工环保, 2015,35(5):547-551. Yang W H, Chen A H, Li W P, et al. Synthesization of fly-ash zeolite by alkali fusion-microwave crystallization process and adsorption to Cd2+[J]. Environmental Protection of Chemical Industry, 2015,35(5):547-551.
[19]	Apiratikul R, Pavasant P. Sorption of Cu2+, Cd2+, and Pb2+ using modified zeolite from coal fly ash[J]. Chemical Engineering Journal, 2008,144(2):245-258.
[20]	Wang Z, Ma S, Zheng S, et al. Incorporation of Al and Na in Hydrothermally Synthesized Tobermorite[J]. Journal of the American Ceramic Society, 2017,100(2):792-799.
[21]	Wang Z, Xu L, Wu D, et al. Hydrothermal synthesis of mesoporous tobermorite from fly ash with enhanced removal performance towards Pb2+ from wastewater[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2021,632:127775.
[22]	Luo H, He D, Zhu W, et al. Humic acid-induced formation of tobermorite upon hydrothermal treatment with municipal solid waste incineration bottom ash and its application for efficient removal of Cu (II) ions[J]. Waste Management, 2019,84:83-90.
[23]	Thommes M, Kaneko K, Neimark A V, et al. Physisorption of gases, with special reference to the evaluation of surface area and pore size distribution (IUPAC Technical Report)[J]. Pure and applied chemistry, 2015,87(9/10):1051-1069.
[24]	Azizian S. Kinetic models of sorption:a theoretical analysis[J]. J Colloid Interface Science, 2004,276(1):47-52.
[25]	Ho Y S. Review of second-order models for adsorption systems[J]. Journal of Hazardous Materials, 2006,136(3):681-689.
[26]	Zhao X, Zhao H, Huang X, et al. Effect and mechanisms of synthesis conditions on the cadmium adsorption capacity of modified fly ash[J]. Ecotoxicology and Environmental Safety, 2021,223:112550.
[27]	Sočo E, Kalembkiewicz J. Comparison of adsorption of Cd(II) and Pb(II) ions on pure and chemically modified fly ashes[J]. Chemical and Process Engineering, 2016,37(2):215-234.
[28]	Li B, Yang L, Wang C Q, et al. Adsorption of Cd(II) from aqueous solutions by rape straw biochar derived from different modification processes[J]. Chemosphere, 2017,175:332-340.
[29]	范少蓓,许仕荣,文武.氧化锰改性活性炭的优化制备及其对Cd(Ⅱ)的吸附研究[J]. 环境工程, 2017,35(5):34-39. Fan S B, Xu S R, Wen W. Preparation optimization of activated carbon modified by manganese oxide and its adsorption of Cd(II)[J]. Environmental Engineering, 2017,35(5):34-39.
[30]	Li M, Li M Y, Feng C G, et al. Preparation and characterization of multi-carboxyl-functionalized silica gel for removal of Cu (II), Cd (II), Ni (II) and Zn (II) from aqueous solution[J]. Applied Surface Science, 2014,314:1063-1069.
[31]	Huang R, Lin Q, Zhong Q, et al. Removal of Cd(II) and Pb(II) from aqueous solution by modified attapulgite clay[J]. Arabian Journal of Chemistry, 2020,13(4):4994-5008.
[32]	Yang W, Tang Q, Wei J, et al. Enhanced removal of Cd(II) and Pb(II) by composites of mesoporous carbon stabilized alumina[J]. Applied Surface Science, 2016,369:215-223.
[33]	Guo X, Shi H. Microstructure and heavy metal adsorption mechanisms of hydrothermally synthesized Al-substituted tobermorite[J]. Materials and Structures, 2017,50(6):1-10.
[34]	Wang B, Zhou Y, Li L, et al. Novel synthesis of cyano-functionalized mesoporous silica nanospheres (MSN) from coal fly ash for removal of toxic metals from wastewater[J]. Journal of Hazardous Materials, 2018,345:76-86.
[35]	Pipíška M, Florková E, Nemeček P, et al. Evaluation of Co and Zn competitive sorption by zeolitic material synthesized from fly ash using 60Co and 65Zn as radioindicators[J]. Journal of Radioanalytical and Nuclear Chemistry, 2019,319(3):855-867.
[36]	Tomasz K, Anna K, Ryszard C. Effective adsorption of lead ions using fly ash obtained in the novel circulating fluidized bed combustion technology[J]. Microchemical Journal, 2019,145:1011-1025.
[37]	Mostafa N Y, Kishar E A, Abo-El-Enein S A. FTIR study and cation exchange capacity of Fe3+-and Mg2+-substituted calcium silicate hydrates[J]. Journal of Alloys and Compounds, 2009,473(1/2):538-542.
[38]	罗洁,张海军,刘璟,等.碱激发粉煤灰对Cs+的吸附行为[J]. 化工环保, 2015,35(2):192-198. Luo J, Zhang H J, Liu J, et al. Adsorption behavior of alkali activated fly ash to Cesium ions[J]. Environmental Protection of Chemical Industry, 2015,35(2):192-198.