18 research outputs found
Equilibrium, Kinetic and Thermodynamic Studies of Biosorption of Methylene Blue on Goethite Modified Baobab Fruit Pod ( Adansonia Digitata L.)
Methylene Blue (MB) was adsorbed from aqueous solution using Baobab
(Adansonia digitata L.) fruit pod and its goethite modified form.
Adsorbents were characterized using Fourier Transform-Infra Red (FT-IR)
spectroscopy and Scanning Electron Microscopy (SEM). Batch experiments
were conducted at room temperature (26.8 \ub0C) and the adsorption
data were fitted using Langmuir, Freundlich, Temkin and
Dubinin-Radushkevich isotherms. Also, kinetic data was fitted using
Pseudo-first order, pseudo-second order, Elovich and intra-particle
diffusion models. Goethite modified baobab (GMB) appeared to have a
coarse microporous surface with smoother surface and larger pore
volumes compared to unmodified baobab (UB). The \u2013C=O band was
observed at 1631 and 1636 cm-1 for UB and GMB. The \u2013OH band was
observed at 3447.00 cm-1 and 3442 cm-1 for UB and GMB respectively.
Langmuir model was suitable for describing the adsorption data of UB
with R2 of 0.9293 while Temkin model was best for fitting adsorption
data of MB on GMB with R2 of 0.9691. However, maximum adsorption
capacity was obtained with Freundlich adsorption isotherm (15.4253 and
43.1301 mg/g for UB and GMB respectively). The maximum biosorption were
8.98 mg/g and 9.86 mg/g for UB and GMB respectively at pH 10.
Pseudo-second-order kinetic model best fitted the kinetic data with R2
values of 0.9968 and 0.9993 for UB and GMB, \uf044Ho values were
83.123 KJ/mol and 361.094 KJ/mol for UB and GMB, while \uf044So
values were 3.084 J/mol/K and 1.765 J/mol/K for UB and GMB
respectively. GMB adsorbed more of MB than UB and the process was
endothermic
SPARC 2018 Internationalisation and collaboration : Salford postgraduate annual research conference book of abstracts
Welcome to the Book of Abstracts for the 2018 SPARC conference. This year we not only celebrate the work of our PGRs but also the launch of our Doctoral School, which makes this yearâs conference extra special. Once again we have received a tremendous contribution from our postgraduate research community; with over 100 presenters, the conference truly showcases a vibrant PGR community at Salford. These abstracts provide a taster of the research strengths of their works, and provide delegates with a reference point for networking and initiating critical debate. With such wide-ranging topics being showcased, we encourage you to take up this great opportunity to engage with researchers working in different subject areas from your own. To meet global challenges, high impact research inevitably requires interdisciplinary collaboration. This is recognised by all major research funders. Therefore engaging with the work of others and forging collaborations across subject areas is an essential skill for the next generation of researchers
SPARC 2017 retrospect & prospects : Salford postgraduate annual research conference book of abstracts
Welcome to the Book of Abstracts for the 2017 SPARC conference. This year we not only celebrate the work of our PGRs but also the 50th anniversary of Salford as a University, which makes this yearâs conference extra special. Once again we have received a tremendous contribution from our postgraduate research community; with over 130 presenters, the conference truly showcases a vibrant PGR community at Salford. These abstracts provide a taster of the research strengths of their works, and provide delegates with a reference point for networking and initiating critical debate. With such wide-ranging topics being showcased, we encourage you to exploit this great opportunity to engage with researchers working in different subject areas to your own. To meet global challenges, high impact research inevitably requires interdisciplinary collaboration. This is recognised by all major research funders. Therefore engaging with the work of others and forging collaborations across subject areas is an essential skill for the next generation of researchers