Facet and Temperature Effects on Dissolution Thermodynamic Functions of Ag3PO4 Microcrystals†

doi:10.7503/cjcu20190036

Abstract

Abstract:

Ag₃PO₄ microcrystals with different facets, such as {100}(cubic), {111}(tetrahedron), {110}(rhombohedral dodecahedron), and bulk Ag₃PO₄ microcrystals were synthesized at room temperature. Based on the difference of the conductivity between Ag₃PO₄ microcrystals with different facets, the dissolution thermodynamic function of Ag₃PO₄ microcrystals were derived via combining the theoretical formula of strong electrolyte solution and dissolution thermodynamics. According to this method, the dissolution thermodynamic functions such as standard dissolution Gibbs free energy, standard dissolution enthalpy and standard dissolution entropy of the prepared Ag₃PO₄ microcrystals were gained. Moreover, the facet effect and temperature effect on these obtained dissolution thermodynamic functions were discussed. The results revealed that the dissolution thermodynamic function of rhombohedral dodecahedron Ag₃PO₄ were maximum, followed by cubic and tetrahedron Ag₃PO₄ . Along with the increase of the temperature, dissolution equilibrium constant and standard dissolution Gibbs free energy increased.

Key words: Ag₃PO₄, Dissolution thermodynamics, Facet effect, Temperature effect

CLC Number:

O645

TrendMD:

HE Zijun,XIAO Ming,MA Xiangying,QIU Jiangyuan,XIAO Biyuan,QIN Fanghong,HUANG Zaiyin. Facet and Temperature Effects on Dissolution Thermodynamic Functions of Ag₃PO₄ Microcrystals^†[J]. Chem. J. Chinese Universities, 2019, 40(5): 959.

Figures/Tables 6

Fig.1 SEM images of cube(A), tetrahedral(B), rhomb dodecahedron(C) and bulk(D) Ag3PO4 crystals

Fig.2 Particle size distribution histogram of cube(A), tetrahedral(B), rhomb dodecahedron(C) and bulk(D) Ag3PO4 crystals

Fig.3 XRD patterns of Ag3PO4 and with cube, tetrahedral, rhomb dodecahedron Ag3PO4 crystals

Table 1 Standard equilibrium constant of Ag3PO4 at different temperatures

T/K	10¹⁸K_sp/(mol·L^-1)
T/K	Ag₃PO₄ with {100} facet	Ag₃PO₄ with {111} facet	Ag₃PO₄ with {110} facet	Bulk Ag₃PO₄
298.15	7.00	12.80	3.44	2.39
308.15	11.90	21.70	6.75	4.49
318.15	21.20	40.70	12.70	8.76
328.15	37.90	63.80	20.50	15.00
338.15	60.70	99.10	35.90	25.60

Table 2 Standard molar dissolve enthalpy and entropy of Ag3PO4

Fig.4 Relationship between standard molar dissolve Gibbs free energy of Ag3PO4 with different facets and temperatures

References 17

[1]	Huang M. H., Rej S., Hsu S. C., Chemical Communications,2014, 50(14), 1634—1644
[2]	Yang S. Y., Navrotsky A., Philips B. L., Microporous and Mesoporous Materials,2001, 46, 137—151
[3]	Chen K., Chen C. L., Ren X. M., Alsaedi A., Hayat T., Chemical Engineering Journal,2019, 359(1), 944—954
[4]	Wang Y. G., Yang X. F., Hu L. H., Li Y. D., Li J., Chinese Journal of Catalysis,2014, 35(4), 462—467
[5]	Li R. G., Zhang F. X., Wang D., Yang J. X., Li M. R., Zhu J., Zhou X., Han H. X., Li C., Nature Communications,2013, 24(10), 1—7
[6]	Li R. G., Han H. X., Zhang F. X., Wang D., Li C., Energy & Environ. Sci., 2014, 7, 1369—1376
[7]	Hardcastle T. P., Brydson R. M. D., Livi K. J. T., Journal of Physics: Conference Series,2012, 371, 012059
[8]	Zou W.X., Study on the Crystal-plane-effects of Cu2O-based Nanomaterials on Elimination of Environmental Pollutants, Nanjing University, Nanjing, 2015
	(邹伟欣. 氧化亚铜纳米材料的晶面效应在催化消除环境污染物中的性能研究, 南京: 南京大学, 2015)
[9]	Anton P., Janjira I., Jessica B. G., Sarah C. L., Aliasger K. S., Chemical Research in Toxicology,2009, 22(7), 1359—1368
[10]	Lu Y., Acta Phys-Chim. Sin., 2016, 32(9), 2185—2196
	(陆阳. 物理化学学报, 2016, 32(9), 2185—2196)
[11]	Wang S.S., Study on the Size Effect of Nanoparticles on the Surface Thermodynamic Properties by Solubility Method, Taiyuan University of Technology, Taiyuan, 2015
	(王珊珊. 溶解度法研究粒度对纳米颗粒表面热力学性质的影响, 太原: 太原理工大学, 2015)
[12]	Xiao M., Huang Z. Y., Tang H. F., Acta Phys-Chim. Sin., 2017, 33(2), 399—406
	(肖明, 黄在银, 汤焕丰. 物理化学学报, 2017, 33(2), 399—406)
[13]	Liu Z. J., Fan G. C., Huang Z. Y., Chem. J. Chinese Universities,2015, 36(7), 1385—1388
	(刘作娇, 范高超, 黄在银. 高等学校化学学报,2015, 36(7), 1385—1388)
[14]	Qin F. H., Qiu J. Y., Huang Z. Y., Chem. J. Chinese Universities,2018, 39(10), 2214—2220
	(覃方红, 邱江源, 黄在银. 高等学校化学学报,2018, 39(10), 2214—2220)
[15]	Liu Z. J., Fan G. C., Huang Z. Y., Science China: Chimica,2015, 45(8), 855—862
	(刘作娇, 范高超, 黄在银. 中国科学: 化学,2015, 45(8), 855—862)
[16]	David J. M., Naoto U., Chen X. W., Ye J. H., Tang J. W., Energy and Environmental Science,2013, 6(11), 3380—3386
[17]	Fu X.C., Shen W. X., Yao T. Y., Physical Chemistry(4th Ed.), Higher Education Press, Beijing, 1990
	(傅献彩, 沈文霞, 姚天扬. 物理化学(第4版), 北京: 高等教育出版社, 1990)

Facet and Temperature Effects on Dissolution Thermodynamic Functions of Ag₃PO₄ Microcrystals^†

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