以硅藻土为原料制备铯吸附剂及其吸附性能初探

doi:10.19964/j.issn.1006-4990.2020-0436

Abstract

Abstract:

Cesium is an extremely important rare alkali metal resource,which is widely used in the fields of optical fiber communication,catalysis,medical treatment and energy.There are considerable reserves of cesium in the salt lake brine in Qinghai,Tibet and other places to be developed.Therefore,it is of great significance to carry out research on the separation and extraction technology of cesium ions in solution.Non-toxic and inexpensive diatomite was used as the silicon source,triblock polymer P-123 was used as a template agent,and the one step synthesis method was used to synthesize AMP/SiO₂ composite adsorbent with ammonium molybdophosphate（AMP） loading of 27% used to adsorb cesium ion（Cs⁺）.The AMP/SiO₂ was characterized by scanning electron microscope（SEM）,X-ray diffraction（XRD）,fourier transform infrared spectro-meter（FT-IR） and other analytical instruments,and the adsorption properties of AMP/SiO₂ for Cs⁺ in aqueous solution were preliminary investigated.The results showed that AMP was uniformly dispersed in the structure and pores of mesoporous silica,and the composite had a large specific surface area（451.2 m²/g） and pore volume（0.95 cm³/g）.In addition,the adsorp-tion process of adsorbent for Cs⁺ was in accord with the pseudo-second-order kinetic model and Freundlich isotherm adsorp-tion model,and the equilibrium adsorption capacity was up to 63.45 mg/g.

Key words: diatomite, ammonium molybdophosphate, silica, cesium, adsorption

CLC Number:

TQ127.2

Dong Chaochao,Deng Xiaochuan,Wang Bin,Fan Faying,Zhu Chaoliang,Fan Jie,Qing Binju. Preparation of cesium adsorbent from diatomite and its adsorption properties[J]. Inorganic Chemicals Industry, 2021, 53(6): 134-139.

Figures/Tables 12

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Table 1

Fig.8

Fig.9

Table 2

Table 3

References 26

[1]	Hamlyn R, Mahapatra M, Orozco I, et al. Morphology and chemical behavior of model CsO_x/Cu₂O/Cu(111) nanocatalysts for methanol synjournal:Reaction with CO₂ and H₂[J]. Journal of Chemical Phy-sics, 2020,152(4):1-7.
[2]	Parida B, Yoon S, Jeong S M, et al. Recent progress on cesium lead/ tin halide-based inorganic perovskites for stable and efficient solar cells:A review[J]. Solar Energy Materials and Solar Cells, 2020,204:1-29.
[3]	Saleem M I, Yang S Y, Sulaman M, et al. All-solution-processed UV-IR broadband trilayer photodetectors with CsPbBr₃ colloidal nanocrystals as carriers-extracting layer[J]. Nanotechnology, 2020,31(16):1-9.
[4]	宝阿敏, 钱志强, 郑红, 等. 铷、铯的分离提取方法及其研究进展[J]. 应用化工, 2017,46(7):1377-1382.
[5]	张晶晶, 周蕾, 刘萌, 等. 放射性废水中铯的去除方法研究进展[J]. 化学通报, 2019,82(1):12-17.
[6]	刘泽宇, 王斌, 杨晋生, 等. t-BAMBP/磺化煤油体系萃取溶液中微量铯[J]. 盐湖研究, 2019,27(3):75-80.
[7]	黄建成, 丁冬, 李玉婷, 等. 生物质碳气凝胶/MnO₂复合电极对Rb⁺、Cs⁺的电吸附行为[J]. 无机盐工业, 2019,51(10):72-76.
[8]	陈侠, 李颖. 离子交换法富集铷、铯研究进展[J]. 无机盐工业, 2019,51(4):6-9.
[9]	李颖, 陈侠, 苗淑兰, 等. 磷钨酸铵复合材料对铷铯吸附性能的研究[J]. 无机盐工业, 2019,51(6):34-37.
[10]	Heo Y S, Ryu J M, Park S M, et al. Structural basis for inhibition of protein tyrosine phosphatases by Keggin compounds phosphomoly-bdate and phosphotungstate[J]. Experimental and Molecular Me-dicine, 2002,34(3):211-223.
[11]	Smit J, Van R. Ammonium salts of the heteropolyacids as cation ex-changers[J]. Nature, 1958,181(4622):1530-1531. doi: 10.1038/1811530a0
[12]	Wang J L, Zhuang S T. Removal of cesium ions from aqueous solu-tions using various separation technologies[J]. Reviews in Enviro-nmental Science and Bio-Technology, 2019,18(2):231-269.
[13]	Ye X S, Wu Z J, Li W, et al. Rubidium and cesium ion adsorption by an ammonium molybdophosphate-calcium alginate composite adsorbent[J]. Colloids and Surfaces A-Physicochemical and En-gineering Aspects, 2009,342(1/2/3):76-83.
[14]	Chen S Q, Hu J Y, Shi J, et al. Composite hydrogel particles enca-psulated ammonium molybdophosphate for efficiently cesium sele-ctive removal and enrichment from wastewater[J]. Journal of Ha-zardous Materials, 2019,371:694-704.
[15]	Deng H, Li Y X, Huang Y, et al. An efficient composite ion exchan-ger of silica matrix impregnated with ammonium molybdophosphate for cesium uptake from aqueous solution[J]. Chemical Engineering Journal, 2016,286:25-35. doi: 10.1016/j.cej.2015.10.040
[16]	邵艳秋, 张宇婷, 姜振双, 等. 水解剂氟化铵对Fe-SBA-15结构及催化性能的影响[J]. 无机盐工业, 2019,51(9):97-101.
[17]	王冬华. 氧化锌/SBA-15复合材料制备及其光致发光性质[J]. 无机盐工业, 2018,50(4):27-29,42.
[18]	Selim A Q, Mohamed E A, Mobarak M, et al. Cr(Ⅵ) uptake by a composite of processed diatomite with MCM-41:Isotherm,kinetic and thermodynamic studies[J]. Microporous and Mesoporous Ma-terials, 2018,260:84-92.
[19]	Sun C Y, Zhang F, Li S F, et al. Synjournal of SBA-15 encapsulated ammonium molybdophosphate using Qaidam natural clay and its use in cesium ion adsorption[J]. RSC Advances, 2015,5(45):35453-35460. doi: 10.1039/C5RA02398J
[20]	Park Y, Shin W S, Choi S J. Ammonium salt of heteropoly acid im-mobilized on mesoporous silica(SBA-15):An efficient ion exch-anger for cesium ion[J]. Chemical Engineering Journal, 2013,220:204-213. doi: 10.1016/j.cej.2013.01.027
[21]	Dan H, Xian Q, Chen L, et al. One-step direct synjournal of mesopo-rous AMP/SBA-15 using PMA as acid media and its use in cesium ion removal[J]. Journal of Nuclear Materials, 2019,527:1-8.
[22]	刘澜. 改性稻秆吸附剂表征及处理亚甲基蓝溶液的吸附性能研究[D]. 重庆:重庆大学, 2011.
[23]	Murthy G S, Sivaiah M V, Kumar S S, et al. Adsorption of cesium on a composite inorganic exchanger zirconium phosphate-ammoni-um molybdophosphate[J]. Journal of Radioanalytical and Nuclear Chemistry, 2004,260:109-114. doi: 10.1023/B:JRNC.0000027068.15669.ad
[24]	Park Y, Lee Y C, Shin W S, et al. Removal of cobalt,strontium and cesium from radioactive laundry wastewater by ammonium molyb-dophosphate-polyacrylonitrile(AMP-PAN)[J]. Chemical Engin-eering Journal, 2010,162:685-695.
[25]	Chakravarty R, Ram R, Pillai K T, et al. Ammonium molybdophos-phate impregnated alumina microspheres as a new generation sor-bent for chromatographic¹³⁷Cs/^137mBa generator[J]. Journal of Ch-romatography A, 2012,1220:82-91.
[26]	Dan H, Xian Q, Chen L. Fabrication of AMP/SBA-15 with various morphologies for cesium removal from aqueous solution[J]. Jour-nal of Sol-Gel Science and Technology, 2019,91:165-177.

吸附模型	k	q_e/（mg·g^-1）	R²
拟一级动力学模型	k₁=-0.041 9	71.59	0.977 4
拟二级动力学模型	k₂=5.179×10^-4	76.92	0.991 2

T/℃	Langmuir			Freundlich
T/℃	q_m / （mg·g^-1）	K_L/ （L·mg^-1）	R²	K_F	n	R²
25	65.79	0.024	0.980 4	334.734	3.77	0.986 7

有效成分	载体材料	吸附容量/ （mg·g^-1）	w（AMP）/ %	参考文献
AMP	磷酸锆	7.70	—	[23]
	海藻酸钙	91.70	67	[13]
	聚丙烯腈	81.00	—	[24]
	氧化铝	12.00	10	[25]
	SBA-15	70.90	50	[20]
	二氧化硅	36.60	20	[15]
	片状SBA-15	70.00	50	[26]
	SiO₂	63.45	27	本研究

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Preparation of cesium adsorbent from diatomite and its adsorption properties

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 12

References 26

Related Articles 15

Metrics

Comments

Recommended 0

[1]	MA Mingyang, CHEN Minyi, SUN Tao, XUE Bin. Study on preparation and oil/water separation performance of silica-mediated superhydrophobic/superoleophilic hybrid sponge [J]. Inorganic Chemicals Industry, 2025, 57(3): 64-70.
[2]	BAI Xingxing, LI Hanfei, TANG Yong, ZHANG Jun, ZHU Guangkai, LI Lishuo, TONG Zhangfa. Study on preparation of cellulose based hydrogel doped with nano-calcium carbonate and its adsorption properties of copper ions [J]. Inorganic Chemicals Industry, 2025, 57(2): 83-91.
[3]	SHEN Xiaoqian, ZHOU Fei, LIU Wanchen, XU Lu, WU Junshu. Study on synthesis of FeS modified calcium silicate hydrate composites and their total Cr removal performance [J]. Inorganic Chemicals Industry, 2025, 57(2): 57-67.
[4]	ZHU Jicheng, YANG Qixin, LIANG Haoquan, WANG Zengkun, OUYANG Fugui, DI Jing, GAI Xikun. Effect of confined catalyst Ni@S2 on performance of methane dry reforming reaction [J]. Inorganic Chemicals Industry, 2025, 57(2): 138-146.
[5]	WANG Ping, XU Rongsheng, SUN Dong, SHI Xiaohong, XU Wei, LI Mei. Study on preparation of nitrogen-doped biochar and its adsorption properties for methylene blue [J]. Inorganic Chemicals Industry, 2024, 56(9): 117-127.
[6]	SONG Zhaoxia, LIU Yongkang, GUO Yaokun, WANG Tengfei. Study on adsorption performance of wheat straw biochar on malachite green [J]. Inorganic Chemicals Industry, 2024, 56(9): 128-135.
[7]	LI Shuai, LI Tianxiang, ZHU Jing, LIU Songlin. Study on purification process of sodium fluoride [J]. Inorganic Chemicals Industry, 2024, 56(9): 90-97.
[8]	XIONG Chengrong, CHEN Yan, TANG Miao, ZHANG Fengze, ZHOU Tianxiang, OUYANG Ruifeng, DONG Gang, SHI Wei, ZENG Tao, CHEN Yunxia, SU Xiaoli. Research progress on preparation of 2D vermiculite nanosheets and their environmental adsorption of pollutants [J]. Inorganic Chemicals Industry, 2024, 56(8): 19-26.
[9]	ZHANG Bangcheng, WANG Li. Preparation and adsorption properties of waste polyester⁃based activated carbon activated by ZnCl₂ [J]. Inorganic Chemicals Industry, 2024, 56(7): 126-134.
[10]	ZHANG Lijin, LÜ Qing, CHEN Xiaolang, LI Qingxin, SHI Hongyu, QIN Jun. Preparation of Ca-based LDO composite material and its adsorption performance for phosphate [J]. Inorganic Chemicals Industry, 2024, 56(7): 37-45.
[11]	ZHAO Chuang, ZHANG Boyu, LI Ben, JIN Fengying, LI Bin, SUN Zhenhai, GUO Chunlei. Study on adsorption and separation technology of polycyclic aromatic hydrocarbons by adsorbent [J]. Inorganic Chemicals Industry, 2024, 56(7): 61-68.
[12]	LIU Kailong, ZHU Kongyi, GUO Chunlei, MA Xiaobiao, WANG Yujian, SHENG Qiang, LI Xiang, WANG Yinbin, JIN Fengying. Effects of process condition on performance of diesel aromatic to light aromatic [J]. Inorganic Chemicals Industry, 2024, 56(6): 139-146.
[13]	LEI Xinyu, SUN Henghui, YUAN Xinqiang, ZHANG Wei, JIANG Peng, ZHANG Lizhai. Study on preparation of core-shell structure VO₂（M）@SiO₂ by silica sol-gel coating [J]. Inorganic Chemicals Industry, 2024, 56(6): 46-54.
[14]	ZHU Zenghu, WANG Min, PENG Zhengjun, JIA Guofeng, LI Yan. Study on adsorption of potassium ions in lithium chloride solution [J]. Inorganic Chemicals Industry, 2024, 56(6): 61-66.
[15]	DENG Fuli, XIA Zhixiang, LONG Bingwen, ZHANG Yi, DAI Yafen, WANG Bin, DING Yigang. Study on purification process of phosphogypsum by reverse flotation [J]. Inorganic Chemicals Industry, 2024, 56(5): 115-120.