[ASAP] Highly Selective Radioactive 137Cs+ Capture in an Open-Framework Oxysulfide Based on Supertetrahedral Cluster

Chemistry of Materials

DOI: 10.1021/acs.chemmater.8b04877

from Journals via hj on Inoreader https://ift.tt/2BKoQxy

[ASAP] UiO-66-NO2 as an Oxygen “Pump” for Enhancing Oxygen Reduction Reaction Performance

Chemistry of Materials

DOI: 10.1021/acs.chemmater.8b04934

from Journals via hj on Inoreader https://ift.tt/2TYcdGe

[ASAP] MnSiP2: A New Mid-IR Ternary Phosphide with Strong SHG Effect and Ultrabroad Transparency Range

Chemistry of Materials

DOI: 10.1021/acs.chemmater.8b05015

from Journals via hj on Inoreader https://ift.tt/2BPv6nF

Trump Speech On African History Month – Not What Dems Want To See.

I think trump will get a whole lot more Black Votes in the next election. This speech shows why. Blacks answered "What have you got to lose?" with "Nothing", and now they are "Winning!". This will not be forgotten at the poles. … Continue reading →

from Climate Change Skeptic Blogs via hj on Inoreader https://ift.tt/2BOUmKV

On Sea Ice Thickness

ice Charts from AARI showing ice extents by duration. Appearing in brown is Multi-year ice (surviving at least one melt season).

At the recent post Arctic Ice Surpasses 2018 Maximum, I was asked about measures of sea ice thickness and estimates of volume, combining extents (or concentrations) with thickness.  My response:

Agencies like DMI produce model-driven estimates of Arctic sea ice thickness. I limit my analysis to extents because they are observation-driven.

DMI says this:  "The figures are based on calculations using the DMI operational coupled ocean- and sea-ice model HYCOM-CICE. The total sea-ice volume is a product of the sea-ice concentration and its thickness."

"Today, the sea-ice concentration is in general well estimated using satellite products, while the sea-ice thickness is poorly known. The model gives a realistic estimate of the total amount of sea-ice within the Arctic." (concentration means extent). FWIW, DMI estimates of Arctic thickness have increased over the last decade.

It's a complicated business to get remote signals of thickness, which varies with drifting and compaction from storms and currents.  Another way to get at the issue appears in the animation above with AARI ice charts.  They are derived from satellite imagery, configured so that the brown color represents multi-year ice that survived at least one melt season.   The animation shows the last 11 years had some low years, especially 2008, 2009 and 2013, with higher years since.  And obviously the locations of older ice are variable.

Of course there are other sea ice volume modelled products such PIOMAS.  For an insight into how complicated is estimating sea ice thickness from remote sensors see this article Estimating Arctic sea ice thickness and volume using CryoSat-2 radar altimeter data

from Climate Change Skeptic Blogs via hj on Inoreader https://ift.tt/2BJvuUD

Comparison of extraction techniques for polycyclic aromatic hydrocarbons from lichen biomonitors

Abstract

Lichens are useful biomonitors for atmospheric polycyclic aromatic hydrocarbons (PAHs). Different sample preparation techniques were explored in this regard, including ultrasound-assisted solvent extraction, microwave-assisted extraction, Soxhlet, and the quick, easy, cheap, effective, rugged, and safe (QuEChERS) technique. It was found that a QuEChERS technique using hexane:acetone (1:1, v/v), never reported before for application to lichens, provided the best recoveries of internal standards, the highest total peak area for all PAHs of interest, and %RSDs comparable with the other preparation techniques tested. The optimized sample preparation technique was found to be a comparatively fast method (45 min), with good recoveries (96%), using less solvents and minimal energy consumption. Strong matrix effects were found: both strong enhancement (for the lighter PAHs) and strong suppression (for the heavier PAHs). The use of matrix-matched standards is thus imperative for the accurate determination of PAH concentrations in the lichen samples.

Graphical abstract

"Note: This data is mandatory. Please provide."

from Climate Change Skeptic Blogs via hj on Inoreader https://ift.tt/2DZh1nS

Sodium dodecyl sulfate-coated-cationized agroforestry residue as adsorbent for benzene-adsorptive sequestration from aqueous solution

Abstract

The aim of this work is to convert agroforestry residue to a novel adsorbent (M-1CTA-SDS-BT) used for adsorptive benzene sequestration from aqueous solution. In this study, the anionic surfactant-coated-cationized banana trunk was synthesized and characterized for batch adsorption of benzene from aqueous solution. The surface morphology, surface chemistry, surface area, and pore properties of the synthesized adsorbents were examined. It was proven that surface cationization successfully increased the benzene adsorption capacity of sodium dodecyl sulfate-coated adsorbents. The Langmuir isotherm model satisfactorily described the equilibrium adsorption data. The maximum benzene adsorption capacity (q_max) of 468.19 μmol/g was attained. The kinetic data followed the pseudo-second-order kinetic model in which the rate-limiting step was proven to be the film diffusion. The batch-adsorbent regeneration results indicated that the M-1CTA-SDS-BT could withstand at least five adsorption/desorption cycles without drastic adsorption capacity reduction. The findings demonstrated the adsorptive potential of agroforestry-based adsorbent as a natural and cheap material for benzene removal from contaminated water.

from Climate Change Skeptic Blogs via hj on Inoreader https://ift.tt/2SRtswt

Data mangling: BoM’s Changes to Darwin’s Climate History are Not Logical

Guest essay by Dr. Jennifer Marohasy The hubris of the Australian Bureau of Meteorology is on full display with its most recent remodelling of the historic temperature record for Darwin. The Bureau has further dramatically increased the rate of global warming at Darwin by further artificially lowering historic temperatures. This begins by shortening the historical…

from Climate Change Skeptic Blogs via hj on Inoreader https://ift.tt/2BNFQmx

Judge tosses kids climate case in Pennsylvania

By Dana Drugmand A federal judge in Pennsylvania dismissed a climate lawsuit brought by an environmental organization and two children against the federal government. The lawsuit, Clean Air Council v. United States, claimed that Trump administration rollbacks of environmental regulations and other "anti-science" decisions violate Constitutional rights and the public trust.  In dismissing the claims on Tuesday, U.S. District Judge…

from Climate Change Skeptic Blogs via hj on Inoreader https://ift.tt/2txYWbV

Adjusted! Another degree shaved off Darwins history — (at this rate, in 50 years Darwin won’t even be tropical)

Graham Lloyd and Jen Marohasy scorch through the BoMs latest revision of Darwin.

On the 1st of January 1910 the maximum temperature recorded at the Darwin post office was 34.2 degrees C, then it became 33.8 C, and now it was, is, 32.8 C. (What's the past tense of something that is now, but wasn't then? We don't even have grammar for this.)

Look what they've done to history Mum

The Bureau of Meteorology has no interest in the hot pre-1910 era which just gets chopped.  And even if they did include it, after they've adjusted it, it wouldn't be hot anymore anyway.

Remember the Federation Drought? No one else does either.

Temperature is whatever you want to make it.

Mean maximum annual temperatures as measured at the Darwin Post Office and airport shown with the new remodeled ACORN-SAT Version 2, which is the new official record for Australia.

"What the Bureau has done to the historical temperature record for Darwin is indefensible. " -- Marohasy

 

As Marohasy explains, Darwin matters because it had some of the best and earliest data for the vast northern reaches of Australia:

Graham Lloyd, The Weekend Australian --

[...]

Rating: 0.0/10 (0 votes cast)

from Climate Change Skeptic Blogs via hj on Inoreader https://ift.tt/2BLStic

Week 109: Trump’s Flood Insurance Flub Could Cost Us Billions

from Climate Change Skeptic Blogs via hj on Inoreader https://ift.tt/2EpqXsc

[ASAP] Transport Properties of Molecular Conductors (BSBS)2XF6 (X = As, Sb, and Ta): Investigation of Intermolecular Transfer Integrals in the Radical-Cationic State of Benzothienobenzothiophene-Type Semiconductors

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.8b10687

from Journals via hj on Inoreader https://ift.tt/2EqAcJ2

[ASAP] Modeling Faradaic Reactions and Electrokinetic Phenomena at a Nanochannel-Confined Bipolar Electrode

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.8b10473

from Journals via hj on Inoreader https://ift.tt/2VevQKq

[ASAP] Origin of Water-Induced Brønsted Acid Sites in Sn-BEA Zeolites

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.8b12462

from Journals via hj on Inoreader https://ift.tt/2EnqdE0

[ASAP] Neutral Dye-Doped Silica Nanoparticles for Electrogenerated Chemiluminescence Signal Amplification

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.8b11049

from Journals via hj on Inoreader https://ift.tt/2VfAyr9

[ASAP] Counterintuitive Short Uphill Transitions in Single-File Diffusion

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.8b12081

from Journals via hj on Inoreader https://ift.tt/2VeBiwR

[ASAP] Theoretical Study of NO Dissociation on an Open Flat Ru(101¯1) Surface

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.8b11710

from Journals via hj on Inoreader https://ift.tt/2EqAb7W

[ASAP] Affordable Estimation of Solvation Contributions to the Adsorption Energies of Oxygenates on Metal Nanoparticles

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.9b01211

from Journals via hj on Inoreader https://ift.tt/2VkwkPp

[ASAP] Tunable Emission from Triplet Fusion Upconversion in Diketopyrrolopyrroles

Journal of the American Chemical Society

DOI: 10.1021/jacs.8b11796

from Journals via hj on Inoreader https://ift.tt/2GYhtGn

[ASAP] Wave Function Control of Charge-Separated Excited-State Lifetimes

Journal of the American Chemical Society

DOI: 10.1021/jacs.8b13011

from Journals via hj on Inoreader https://ift.tt/2tzyDlx

[ASAP] Oxidatively Induced Reductive Elimination: Exploring the Scope and Catalyst Systems with Ir, Rh, and Ru Complexes

Journal of the American Chemical Society

DOI: 10.1021/jacs.9b00364

from Journals via hj on Inoreader https://ift.tt/2IwbryT

[ASAP] Bulky Calixarene Ligands Stabilize Supported Iridium Pair-Site Catalysts

Journal of the American Chemical Society

DOI: 10.1021/jacs.8b13013

from Journals via hj on Inoreader https://ift.tt/2H02s6L

[ASAP] Pore Space Partition within a Metal–Organic Framework for Highly Efficient C2H2/CO2 Separation

Journal of the American Chemical Society

DOI: 10.1021/jacs.9b00232

from Journals via hj on Inoreader https://ift.tt/2tAjHnc