直接沉淀法制备α-ZrP及其光催化降解性能
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摘要
以氧氯化锆、氟化铵和磷酸为原料,采用改进直接沉淀法制备了层状材料α-ZrP,并对产物进行表征。X射线衍射和傅里叶变换红外光谱测试表明,所合成的产物为α-ZrP,其层间距为0.766 nm;紫外可见光谱测试表明,α-ZrP的禁带宽度为3.94 eV(λ_g=315 nm),说明α-ZrP为紫外光响应型光催化剂。以染料罗丹明B(RhB)为目标污染物,研究了所制备的α-ZrP在黑暗条件下的吸附作用和在光照下的光催化活性。结果表明,α-ZrP在黑暗条件下对RhB的吸附高达46.69%,光照5 h后RhB的总脱色率达到95.85%。
The layered compound of α-ZrP is prepared with ZrOCl_2·8 H_2 O, NH_4 F and H_3 PO_4 as raw materials by direct precipitation method and is characterized by XRD, FT-IR and UV-Vis spectra. The results show that the product is α-ZrP with an interlayer spacing of 0.766 nm. The band gap of α-ZrP is 3.94 eV with the λ_g of 315 nm. The photocatalytic degradation of α-ZrP on RhB is evaluated under UV light irradiation. The results indicate that the adsorption of RhB over α-ZrP in the dark condition is as high as46.69%, while the total decolorization efficiency of RhB reaches 95.85% under light irradiation after 5 h.
The layered compound of α-ZrP is prepared with ZrOCl_2·8 H_2 O, NH_4 F and H_3 PO_4 as raw materials by direct precipitation method and is characterized by XRD, FT-IR and UV-Vis spectra. The results show that the product is α-ZrP with an interlayer spacing of 0.766 nm. The band gap of α-ZrP is 3.94 eV with the λ_g of 315 nm. The photocatalytic degradation of α-ZrP on RhB is evaluated under UV light irradiation. The results indicate that the adsorption of RhB over α-ZrP in the dark condition is as high as46.69%, while the total decolorization efficiency of RhB reaches 95.85% under light irradiation after 5 h.
引文
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[15]胡怡超,周李克,滕家辉,等. Fe3O4/TiO2的制备及光催化降解罗丹明B[J].印染,2017,43(5):15-20.
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[3] PEREZ, RIVIAM J, JORGE L, et al. Direct intercalation of cisplatin into zirconium phosphate nanoplatelets; for potential cancer nanotherapy[J]. Nanoscale, 2013, 5(23):11456-11463.
[4] LU H, WILKIE C A, DING M, et al. Thermal properties and flammability performance of poly(vinyl alcohol)/α-zirconium phosphate nanocomposites[J]. Polymer Degradation&Stability,2011, 96(5):885-891.
[5] CLEARFIELD A, STYNES J A. The preparation of crystalline zirconium phosphate and some observations on its ion-exchange behavior[J]. J. Inorg. Nucl. Chem., 1964, 26(1):117-129.
[6] BENHAMZA H, BARBOUX P, BOUHAOUSS A, et al. Sol–gel synthesis of Zr(HPO4)2·H2O[J]. J. Mater. Chem., 1991(1):681-684.
[7] ALBERTI G, CASCIOLA M. Layered metal phosphonates, a large class inorgano-organic proton conductors[J]. Solid State Ionics, 1997(97):177-186.
[8]孙美丹,傅相锴,周杰,等.α-磷酸氢锆六氢吡啶的超分子插层组装及其对废水中酚的吸收研究[J].化学通报,2016(2):114-118.
[9] WU H X, LIU C H, CHEN J G, et al. Preparation and characterization of chitosan/α-zirconium phosphate nano-composite films[J]. Polym Int, 2010(59):923-930.
[10] NISHIYAMA Y, TANAKA S, HILLHOUSE H W, et al. Synthesis of Ordered Mesoporous Zirconium Phosphate Films by Spin Coating and Vapor Treatments[J]. Langmuir, 2006, 22(23):9469-9472.
[11] ALHENDAWI, HUSSEIN M H. Synthesis and structural characterization of a new chiral porous hybrid organic–inorganic material based onγ-zirconium phosphates and L-(+)-phosphoserine[J]. Journal of Solid State Chemistry, 2013(201):24-28.
[12] JIANG Q, LIU M, MA H, et al. Preparation of luminescent layered zirconium phosphate nanocomposites by the layer-by-layer technique[J]. Optical Materials, 2016(62):447-451.
[13]朱堂龙,王黎明,沈勇,等.纳米ZnO/TiO2复合体系的制备及应用[J].印染,2016,42(2):1-6.
[14]李新玲,胡晓霞,李戎,等.微波法制备磷酸锆的研究[J].广州化工,2014(24):56-60.
[15]胡怡超,周李克,滕家辉,等. Fe3O4/TiO2的制备及光催化降解罗丹明B[J].印染,2017,43(5):15-20.
[16]吴强顺,王慧娟,周广顺,等. TS-1分子筛的制备及光催化降解偶氮染料AO7[J].印染,2016,42(20):1-5.