Sorption-Desorption Properties of Titanium Phosphate with Respect to Heavy Metal Cations

IF 0.7 4区化学 Q4 CHEMISTRY, PHYSICAL

Russian Journal of Physical Chemistry A Pub Date : 2025-04-25 DOI:10.1134/S0036024424603458

M. V. Maslova, P. E. Evstropova, N. V. Mudruk, Yu. P. Semushina

引用次数: 0

Abstract

The sorption and desorption behavior of divalent ions (Cu²⁺, Mn²⁺, Co²⁺, Ni²⁺) on amorphous titanium phosphate has been studied. The sorption/desorption equilibrium is shown to be largely determined by the solvated state of heavy metal cations, and selectivity series are constructed. The degree of desorption exceeds 99.9% in all cases regardless of the degree of saturation of the sorbent with metal cations. When the sorbent is used in many cycles, the efficiency of sorption/desorption processes decreases because of its dehydration due to sorbent hydrolysis, which is 2.6 × 10^–3 mg g^–1 h^–1. The efficiency of sorption/desorption of the ions from multicomponent solutions is shown.

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磷酸钛对重金属阳离子的吸附-解吸性能

研究了Cu2+、Mn2+、Co2+、Ni2+等二价离子在无定形磷酸钛上的吸附和解吸行为。结果表明，吸附/解吸平衡在很大程度上取决于重金属阳离子的溶剂化状态，并构建了选择性序列。无论吸附剂与金属阳离子的饱和程度如何，在所有情况下，解吸度都超过99.9%。当吸附剂多次循环使用时，吸附/解吸过程的效率因吸附剂水解而降低，其脱水率为2.6 × 10-3 mg g-1 h-1。研究了多组分溶液中离子的吸附/解吸效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Russian Journal of Physical Chemistry A 化学-物理化学

CiteScore

1.20

自引率

14.30%

发文量

376

审稿时长

5.1 months

期刊介绍： Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world. Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.