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Exploring the adsorption mechanisms of cationic and anionic dyes onto agricultural waste peels of banana, cucumber and potato: Adsorption Kinetics and Equilibrium Isotherms as a Tool
Publication date: Available online 30 October 2018Source: Journal of Environmental Chemical EngineeringAuthor(s): A. Stavrinou, C.A. Aggelopoulos, C.D. TsakiroglouAbstractBanana (BP), cucumber (CP) and potato peels (PP) were used as biosorbents for the removal of both cationic (Methylene blue) and anionic (Orange G) dyes from wastewater. The adsorbents were characterized by ATR-FTIR, N2 Sorption, SEM, and XRD attempting to shed light on the adsorption mechanisms. The ATR-FTIR spectroscopy played a key-role for the chemical characterization of the different adsorbents in order to investigate their composition and in paralle...
Source: Journal of Environmental Chemical Engineering - October 31, 2018 Category: Chemistry Source Type: research
Commentary on 3 chemical peeling letters
To the Editor: Standardization of any resurfacing procedure is crucial for reproducibility and communication. These 3 articles, “Reviving the Call for Weight by Volume Standardization of Trichloroacetic Acid Peel Solutions” by Lee et al,1 “Depth of Injury of Hetter's Phenol–Croton Oil Chemical Peel Formula Using 2 Different Emulsifying Agents” by da Silvo Justo et al,2 and “Clinical Preliminary Evaluation of P EG-80 sorbitan laurate (Novisol) Versus Triclosan (Septisol) in Deep-Peeling Hetter Formulas” by Kass et al3 scientifically underline crucial factors within the medium- and deep-peel spectrum that f...
Source: Journal of the American Academy of Dermatology - March 1, 2020 Category: Dermatology Authors: Harold J. Brody Tags: JAAD Online Source Type: research
34317 The unmasking of facial psoriasis by medium-depth chemical peels in the context of severe sun damage
We report on the prevalence of prolonged facial erythema in a cohort of patients who underwent this procedure for severe photodamage. In each case there was an aetiology of facial psoriasis.
Source: Journal of the American Academy of Dermatology - September 1, 2022 Category: Dermatology Authors: Liang Joo Leow Source Type: research
Characterization of Carotenoid Fatty Acid Esters from the Peels of the Persimmon Diospyros kaki.
Abstract
Separation and structural determination of the chloroform-soluble components obtained from the peels of the persimmon (Diospyros kaki Thunb.) were performed. β-Carotene, lycopene, β-cryptoxanthin mono-myristic acid ester, zeaxanthin di-myristic acid ester, the latter two of which were accompanied by a small amount of palmitoleic acid in the fatty acid moiety, and oleanolic acid were identified. Among these components, the mono-fatty acid ester of β-cryptoxanthin and the di-fatty acid ester of zeaxanthin were characterized for the first time.
PMID: 23727781 [PubMed - in process]
Source: Chemical and Pharmaceutical Bulletin - June 8, 2013 Category: Drugs & Pharmacology Authors: Hitaka Y, Nakano A, Tsukigawa K, Manabe H, Nakamura H, Nakano D, Kinjo J, Nohara T, Maeda H Tags: Chem Pharm Bull (Tokyo) Source Type: research
Chemical Peels
Facial resurfacing is a fundamental part of rejuvenation but it is often ignored because of the perceived difficulty. Lasers are an option, but they have proved inadequate for difficult rhytids (ie, perioral) both in quality and longevity. Croton oil peels can give excellent results with remarkable permanence. The misconception of danger and difficulty will be dispelled and the reality that these peels can be done in a controlled fashion and are within the grasp of any practitioner will be discussed.
Source: Facial Plastic Surgery Clinics of North America - July 26, 2023 Category: Cosmetic Surgery Authors: Richard H. Bensimon Source Type: research
The Facts About Chemical Peels
Why do chemical peels have such mass appeal? Learn how they work and what to expect.
Source: WebMD Health - October 2, 2014 Category: Consumer Health News Source Type: news
Modified activated carbons from potato peels as green environmental-friendly adsorbents for the treatment of pharmaceutical effluents
Publication date: May 2015 Source:Chemical Engineering Research and Design, Volume 97 Author(s): George Z. Kyzas , Eleni A. Deliyanni The aim of this work is to use environmental-friendly materials (low-cost) as adsorbents for the treatment of pharmaceutical effluents. A really difficult category of environmental pollutants is that consisted of pharmaceutical compounds. Many of these compounds are not completely removed by wastewater treatment plants (WWTPs) and consequently they are detectable in WWTP effluents, surface waters and ground and drinking water all over the world. Therefore, the environmental impact of drugs...
Source: Chemical Engineering Research and Design - May 4, 2015 Category: Chemistry Source Type: research
Production of carbonaceous material from avocado peel for its application as alternative adsorbent for dyes removal
Publication date: Available online 3 December 2015 Source:Chinese Journal of Chemical Engineering Author(s): Carolyn Palma, Lucia Lloret, Antonio Puen, Maira Tobar, Elsa Contreras Adsorption processes have received special attention for contaminants removal thanks to their capability to generate effluents with high quality as well as their simple design. In the current work, the agro-waste residue avocado peel is proposed to be used as alternative to conventional activated carbons whose use is sometimes restricted to high costs, upgraded by their exhausting after long term operations. The carbonization procedure was...
Source: Chinese Journal of Chemical Engineering - December 4, 2015 Category: Chemistry Source Type: research
Amine-crosslinked Shaddock Peel embedded with hydrous zirconium oxide nano-particles for selective phosphate removal in competitive condition
Publication date: Available online 6 September 2017 Source:Journal of the Taiwan Institute of Chemical Engineers Author(s): Pijun Duan, Xing Xu, Yanan Shang, Baoyu Gao, Feifei Li In this paper, we prepared a novel biomass-based adsorbent, amine-crosslinked Shaddock Peel embedded with nano hydrous zirconium oxide (ACSP-HZO), to capture the phosphate ions in competitive adsorption systems. The ACSP-HZO was characterized by SEM, EDS, FTIR, XRD, TEM, XPS and Zeta potential analysis. Zeta potential indicated that the pure HZO nanoparticles were negatively charged. Element mapping showed that Zr distribution is closely related ...
Source: Journal of the Taiwan Institute of Chemical Engineers - September 7, 2017 Category: Chemistry Source Type: research
Chemical peels are safe for people with darker skin, result in few side effects and complications
(Boston Medical Center) Results from a new study led by Boston Medical Center (BMC) indicate that, when performed appropriately, chemical peels can be a safe treatment option for people with darker skin.
Source: EurekAlert! - Medicine and Health - March 16, 2018 Category: International Medicine & Public Health Source Type: news
Simultaneous removal of dye and heavy metal by banana peels derived hierarchically porous carbons
This study indicated BPCAO could be a favorable biomass-derived adsorbent for the simultaneous removal of the dye and heavy metal.Graphical abstract
Source: Journal of the Taiwan Institute of Chemical Engineers - September 15, 2018 Category: Chemistry Source Type: research
Lemon peel guided sol-gel synthesis of visible light active nano zinc oxide
Publication date: Available online 28 October 2018Source: Journal of Environmental Chemical EngineeringAuthor(s): B Abarna, Preethi T, Rajarajeswari G.RAbstractGuiding the growth of nanostructured metal oxides through biomass offers environmentally benign routes to produce solids with customizable crystallite, optical and surface characteristics. In this context, we herein report the synthesis of visible light active nano ZnO through sol-gel method in the presence of lemon peel. The ``-fold increase in the surface area and a shift in the absorption edge of lemon peel assisted ZnO towards visible region, together with its e...
Source: Journal of Environmental Chemical Engineering - October 29, 2018 Category: Chemistry Source Type: research
Pomegranate peel and orange juice by-product as new biosorbents of phenolic compounds from olive mill wastewaters
Publication date: Available online 12 March 2019Source: Chemical Engineering and Processing - Process IntensificationAuthor(s): Maria Ververi, Athanasia M. GoulaAbstractSeveral wastes and residues have been studied for the adsorption of phenolic compounds with varying success. However, new economical, easily available, and highly effective adsorbents are still needed. The purpose of this work is to consider the potential of two food wastes derived from agricultural activities, the non-modified pomegranate peel and orange juice by-product, after the removal of their own phenolic content, for phenolics sorption from olive mi...
Source: Chemical Engineering and Processing: Process Intensification - March 13, 2019 Category: Chemistry Source Type: research
The magnetic biochar derived from banana peels as a persulfate activator for organic contaminants degradation
Publication date: 15 September 2019Source: Chemical Engineering Journal, Volume 372Author(s): Xing Rong, Meng Xie, Lingshuai Kong, Vinothkumar Natarajan, Long Ma, Jinhua ZhanAbstractThe magnetic biochar (γ-Fe2O3@BC) derived from banana peels was synthesized by a facile one-pot thermal process and used as the cost-effective and recyclable persulfate (PS) activator for organic contaminants degradation. The results showed that the encapsulated iron oxide nanoparticles not only introduced the magnetism into biochar for easy separation, but also influenced the catalytic ability for PS activation. The γ-Fe2O3@BC was found to b...
Source: Chemical Engineering Journal - April 26, 2019 Category: Chemistry Source Type: research
Health Tip: Chemical Peel
-- A chemical peel can reduce signs of aging and treat a variety of skin conditions, says the American Academy of Dermatology.
Acne, discoloration, freckles and sun-damaged skin are some of the many conditions commonly treated with a peel.
After...
Source: Drugs.com - Daily MedNews - May 2, 2019 Category: General Medicine Source Type: news
