Institute of Applied Chemistry and Environmental Engineering

Yancheng, China

Institute of Applied Chemistry and Environmental Engineering

Yancheng, China
SEARCH FILTERS
Time filter
Source Type

Sun Y.,Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection | Sun Y.,Institute of Applied Chemistry and Environmental Engineering | Zhang A.,Nanjing University | Liu Z.,Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection | And 3 more authors.
Lizi Jiaohuan Yu Xifu/Ion Exchange and Adsorption | Year: 2012

The structural changes of CNTs produced by mechanical ball milling and the influence of different milling times on their adsorptive capacity for aniline were investigated. The results indicated that different lengths of short and open-ended CNTs could be obtained by mechanical ball milling. The extent of shortening and opening of CNTs increased on prolonging the milling time. The aggregated pores size of CNTs sharply decreased after ball milling, while the size of inner pores remained constant. The adsorptive capacity of milled CNTs for aniline improved obviously compared to unmilled CNTs. It was the capillary condensation occurred within the inner pore that played an important role in adsorption.


Sun Y.,Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection | Sun Y.,Institute of Applied Chemistry and Environmental Engineering | Zhang A.,Nanjing University | Peng B.,Institute of Applied Chemistry and Environmental Engineering | And 3 more authors.
Lizi Jiaohuan Yu Xifu/Ion Exchange and Adsorption | Year: 2012

In this paper the influences of adsorbate flow rate and the concentration of nitric acid on the adsorption of nitrobenzene in organic wastewater have been investigated using carbon black as adsorbent. The conditions of adsorption and treatment have been optimized, and the adsorption capability of different carbonic materials for nitrobenzene was also compared. The result showed that the carbon black had higher adsorptive capacity than other carbonic materials. In this work, carbon black was characterized by modern techniques including XRD and BET. We concluded that the capillary condensation on mesopore (about pore diameter of 40nm), which existed the surface of carbon black, played an important role in liquid phase adsorption.


Wu L.,Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection | Wu L.,Institute of Applied Chemistry and Environmental Engineering | Liu Z.,Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection | Sha X.,Institute of Applied Chemistry and Environmental Engineering | And 3 more authors.
Lizi Jiaohuan Yu Xifu/Ion Exchange and Adsorption | Year: 2013

A new hypercrosslinked polymeric resin LZ-01 modified with 5-aminosalicylic acid was synthesized, and adsorption capacities of p-cresol and p-nitrophenol in aqueous solution onto LZ-01 and NJ-8 were compared. Adsorption thermodynamics and kinetics toward phenolic compounds in aqueous solution onto the new resin within the temperature range from 288K to 318K were investigated. Experimental results indicated that LZ-01 had higher adsoiption capacities of p-cresol and p-nitrophenol than NJ-8, which was ascribed to larger surface area, more micropores and amino, hydroxyl and carboxyl groups on the network of LZ-01 resins. Adsorption data could preferably fitted Freundlich equation, and the absolute value of isosteric adsorption enthalpy changes was less than 40kJ/mol, which suggested that the adsorption of p-cresol and p-nitrophenol in aqueous solution mainly was a physical adsorption process promoted by enthalpy. Kinetic results proved that adsorption of p-cresol and p-nitrophenol on LZ-01 fitted Pseudo-first-order rate equation, and the adsorption rate was raised with the increasing of temperature, so that intraparticle diffusion was the rate-determining step in the adsorption process.


Zhang H.-M.,Institute of Applied Chemistry and Environmental Engineering | Tang B.-P.,Institute of Applied Chemistry and Environmental Engineering | Wang Y.-Q.,Institute of Applied Chemistry and Environmental Engineering
Molecular Biology Reports | Year: 2010

The interactions of lysozyme with caffeine (Caf), theophylline (Tph) and theobromine (Tbr) were investigated using UV-Vis absorption, fluorescence, synchronous fluorescence, and three-dimensional fluorescence spectra techniques. The results revealed that Caf (Tph or Tbr) caused the fluorescence quenching of lysozyme by the formation of Caf (Tph or Tbr)-lysozyme complex. The binding constants (K A) and thermodynamic parameters (ΔG°, ΔH°, ΔS°) at two different temperatures, the binding locality, and the binding power were obtained. The results showed that the process of binding Caf (Tph or Tbr) to lysozyme was a spontaneous molecular interaction procedure and the hydrophobic and electrostatic interactions play a major role in stabilizing the complex; The distance r between donor (lysozyme) and acceptor (Caf, Tph or Tbr) was obtained according to fluorescence resonance energy transfer. The effect of Caf (Tph or Tbr) on the conformation of lysozyme was analyzed using synchronous fluorescence and three-dimensional fluorescence spectra techniques. The results showed that the binding of Caf (Tph or Tbr) to lysozyme induced some micro-environmental and conformational changes in lysozyme and disturbed the environment of the polypeptide of lysozyme. © 2009 Springer Science+Business Media B.V.


Liu Z.,Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection | Sun Y.,Institute of Applied Chemistry and Environmental Engineering | Yang S.,Institute of Applied Chemistry and Environmental Engineering | Fei Z.,Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection | And 2 more authors.
Lizi Jiaohuan Yu Xifu/Ion Exchange and Adsorption | Year: 2013

Adsorption properties and mechanism of phthalic acid onto trimellitic anhydride modified resin (TMA) were studied through the static adsorption and dynamics experimental compared to granular activated carbon (GAC). The results showed that the TMA resin and GAC had good adsorption capabilities for phthalic acid. The adsorption capacities of the two adsorbent decreased with the sorption temperature increased. Freundlich adsorption isotherm equation could fit the adsorption isotherm perfectly. The data of enthalpy indicated that the adsorption process was a physical adsorption, and the value of enthalpy decreased when the Qe increased. Pseudo-first order kinetic equation could fit the adsorption process perfectly, which meant inner diffusion of the particles was the major controlling step of adsorption process.

Loading Institute of Applied Chemistry and Environmental Engineering collaborators
Loading Institute of Applied Chemistry and Environmental Engineering collaborators