Synthesis and characterization of a novel Mg–Al hydrotalcite-loaded kaolin clay and its adsorption properties for phosphate in aqueous solution

Deng, Lin; Shi, Zhou

doi:10.1016/j.jallcom.2015.03.022

Cited by 115 publications

(55 citation statements)

References 38 publications

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“…MgO-D exhibited an excellent performance on nutrients removal in a wide pH range of (T 25°C, pH 7, adsorbent dosage 0.3 g L -1 ) Z-Al (hydrated aluminum oxide modified zeolite ) 7.0 30 [1] Modified Clinoptilolite (NaCl, FeCl3, thermal) 0.87 3.33 [46] Ferrihydrite-modified diatomite 37.3 [21] MKC (Mg-Al hydrotalcite loaded) 11.85 - [47] Ca-bentonite -46.90 [48] Integrated modified zeolite -17.24 [49] MgO-D 160.94 77.05 Present study…”

Section: Discussionmentioning

confidence: 99%

Struvite crystallization combined adsorption of phosphate and ammonium from aqueous solutions by mesoporous MgO⿿loaded diatomite

Xia

Wang

Song

et al. 2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

126

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Section: Discussionmentioning

confidence: 99%

Struvite crystallization combined adsorption of phosphate and ammonium from aqueous solutions by mesoporous MgO⿿loaded diatomite

Xia

Wang

Song

et al. 2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

126

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“…The adsorption of anions onto HT is known to proceed via the formation of inter-layer outer sphere complexes upon an anion exchange reaction [43]. Additionally, HT has been generating interest as a catalyst in bio-diesel fuel production, whereby a noted increased yield from 62% to 77% has been observed in the presence of HT catalyst [44], [45]. The catalytic activity of HT has been further demonstrated in the aerobic oxidation of benzyl alcohol [46].…”

Section: International Journal Of Chemical Engineering and Applicatiomentioning

confidence: 99%

Effect of Hydrotalcite on Bromine Content in Oil Produced from the Pyrolysis of Acrylonitrile-Butadiene-Styrene Plastics

Morita¹,

Nakayasu²,

Wajima³

et al. 2016

IJCEA

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Abstract-In this study, a method is presented to reduce the halogen concentration in the oil produced upon pyrolysis of acrylonitrile-butadiene-styrene (ABS) resins containing brominated flame retardants. More specifically, hydrotalcite was added to a predetermined amount of ABS in a glass reactor, and subjected to pyrolysis at 400 °C in nitrogen atmosphere. The bromine content in the product oil, residue, and gas released upon pyrolysis was analyzed. The main components of the product oil following pyrolysis of ABS in the absence of hydrotalcite additive were toluene, ethylbenzene, styrene, 1-bromomethyl-4-methylbenzene, phenol, n-butyl benzene, 1-methoxy-1-methylethyl benzene, and bromine compounds 2-bromophenol, 4-benzyloxy bromobenzene, 2,6 dibromophenol, and 2-bromotoluene. In contrast, the content of bromine in the product oil decreased when hydrotalcite was added to ABS. Moreover, negligible amounts of bromine were detected when the amount of added hydrotalcite was greater than 8 g. The reduced content of bromine in the product oil was attributed to the efficient trapping of bromine in the hydrotalcite matrix (as determined by the content of bromine in the residue).

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“…The case using HT showed the highest yield, which was approximately 1.5 times that of the additivefree case. This result indicates the catalytic action of HT [40,41]. In addition, the gases generated by pyrolysis were all less than 1 L. …”

Section: Product Oil Yieldmentioning

confidence: 90%

“…The anionic adsorption mechanism of HT has been proposed as an interlamellar complex formed of anionic exchange reactions [39]. In addition, HT has attracted attention as a catalyst, and reports have shown a yield increase to 77% from 62% in biodiesel fuel generation [40,41].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Bromine-Based Flame Retardant Plastic Pyrolysis of Hydrotalcite

Morita

Kawabata

Wajima

et al. 2016

MATEC Web of Conferences

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Abstract. In this study, a method is presented to decrease halogen compounds in the product oil from thermolysis of polystyrene and polypropylene mixed plastic spiked with tetrabromobisphenol A. A mixture of hydrotalcite and plastic was pyrolyzed in a glass reactor at 400 °C under a nitrogen atmosphere. Bromine compounds in the residual substances were measured. The yield of product oil increased using hydrotalcite as an additive. The bromine compounds that were the major ingredients in the oil after thermolysis at 400 °C from the mixed plastic, which also included toluene, ethyl benzene, styrene, and 1-methylethyl benzene, were 2-bromohexane, 3-bromo-1-propenyl benzene, 4,5-dibromodecane, 1-bromomethylbenzene, 3-bromophenol, and 4-bromo-2,6-dimethylbenzaniline. However, bromine compounds were not detected in the product oil, residue, or gas when hydrotalcite was added. After the thermolysis of the plastic, bromine compounds in the product oil may decrease because bromine was captured by the added hydrotalcite.

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Synthesis and characterization of a novel Mg–Al hydrotalcite-loaded kaolin clay and its adsorption properties for phosphate in aqueous solution

Cited by 115 publications

References 38 publications

Struvite crystallization combined adsorption of phosphate and ammonium from aqueous solutions by mesoporous MgO⿿loaded diatomite

Struvite crystallization combined adsorption of phosphate and ammonium from aqueous solutions by mesoporous MgO⿿loaded diatomite

Effect of Hydrotalcite on Bromine Content in Oil Produced from the Pyrolysis of Acrylonitrile-Butadiene-Styrene Plastics

Effect of the Bromine-Based Flame Retardant Plastic Pyrolysis of Hydrotalcite

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